diff --git a/core/modules/system/config/schema/system.schema.yml b/core/modules/system/config/schema/system.schema.yml
index 020e9d3..857e59f 100644
--- a/core/modules/system/config/schema/system.schema.yml
+++ b/core/modules/system/config/schema/system.schema.yml
@@ -130,12 +130,6 @@ system.date_format.*:
     locked:
       type: boolean
       label: 'Locked'
-    locales:
-      type: sequence
-      label: 'Languages'
-      sequence:
-        - type: string
-          label: 'Language'
     pattern:
       type: mapping
       label: 'Format string'
diff --git a/core/modules/system/config/system.date_format.fallback.yml b/core/modules/system/config/system.date_format.fallback.yml
index 51e0182..6e0c242 100644
--- a/core/modules/system/config/system.date_format.fallback.yml
+++ b/core/modules/system/config/system.date_format.fallback.yml
@@ -4,7 +4,6 @@ label: 'Fallback date format'
 status: true
 langcode: en
 locked: true
-locales: {  }
 pattern:
   php: 'D, m/d/Y - H:i'
   intl: 'ccc, MM/dd/yyyy - kk:mm'
diff --git a/core/modules/system/config/system.date_format.html_date.yml b/core/modules/system/config/system.date_format.html_date.yml
index 50f2509..7c81d45 100644
--- a/core/modules/system/config/system.date_format.html_date.yml
+++ b/core/modules/system/config/system.date_format.html_date.yml
@@ -4,7 +4,6 @@ label: 'HTML Date'
 status: true
 langcode: en
 locked: true
-locales: {  }
 pattern:
   php: Y-m-d
   intl: yyyy-MM-dd
diff --git a/core/modules/system/config/system.date_format.html_datetime.yml b/core/modules/system/config/system.date_format.html_datetime.yml
index 33fad39..fd594fd 100644
--- a/core/modules/system/config/system.date_format.html_datetime.yml
+++ b/core/modules/system/config/system.date_format.html_datetime.yml
@@ -4,7 +4,6 @@ label: 'HTML Datetime'
 status: true
 langcode: en
 locked: true
-locales: {  }
 pattern:
   php: 'Y-m-d\TH:i:sO'
   intl: 'yyyy-MM-dd''T''kk:mm:ssZZ'
diff --git a/core/modules/system/config/system.date_format.html_month.yml b/core/modules/system/config/system.date_format.html_month.yml
index b2c8c60..439ee54 100644
--- a/core/modules/system/config/system.date_format.html_month.yml
+++ b/core/modules/system/config/system.date_format.html_month.yml
@@ -4,7 +4,6 @@ label: 'HTML Month'
 status: true
 langcode: en
 locked: true
-locales: {  }
 pattern:
   php: Y-m
   intl: Y-MM
diff --git a/core/modules/system/config/system.date_format.html_time.yml b/core/modules/system/config/system.date_format.html_time.yml
index d804313..cff494c 100644
--- a/core/modules/system/config/system.date_format.html_time.yml
+++ b/core/modules/system/config/system.date_format.html_time.yml
@@ -4,7 +4,6 @@ label: 'HTML Time'
 status: true
 langcode: en
 locked: true
-locales: {  }
 pattern:
   php: 'H:i:s'
   intl: 'H:mm:ss'
diff --git a/core/modules/system/config/system.date_format.html_week.yml b/core/modules/system/config/system.date_format.html_week.yml
index 4258b21..47720c2 100644
--- a/core/modules/system/config/system.date_format.html_week.yml
+++ b/core/modules/system/config/system.date_format.html_week.yml
@@ -4,7 +4,6 @@ label: 'HTML Week'
 status: true
 langcode: en
 locked: true
-locales: {  }
 pattern:
   php: Y-\WW
   intl: 'Y-''W''WW'
diff --git a/core/modules/system/config/system.date_format.html_year.yml b/core/modules/system/config/system.date_format.html_year.yml
index aaba268..fa67489 100644
--- a/core/modules/system/config/system.date_format.html_year.yml
+++ b/core/modules/system/config/system.date_format.html_year.yml
@@ -4,7 +4,6 @@ label: 'HTML Year'
 status: true
 langcode: en
 locked: true
-locales: {  }
 pattern:
   php: Y
   intl: Y
diff --git a/core/modules/system/config/system.date_format.html_yearless_date.yml b/core/modules/system/config/system.date_format.html_yearless_date.yml
index 221244b..420bac6 100644
--- a/core/modules/system/config/system.date_format.html_yearless_date.yml
+++ b/core/modules/system/config/system.date_format.html_yearless_date.yml
@@ -4,7 +4,6 @@ label: 'HTML Yearless date'
 status: true
 langcode: en
 locked: true
-locales: {  }
 pattern:
   php: m-d
   intl: MM-d
diff --git a/core/modules/system/config/system.date_format.long.yml b/core/modules/system/config/system.date_format.long.yml
index d9492bc..487458d 100644
--- a/core/modules/system/config/system.date_format.long.yml
+++ b/core/modules/system/config/system.date_format.long.yml
@@ -4,7 +4,6 @@ label: 'Default long date'
 status: true
 langcode: en
 locked: false
-locales: {  }
 pattern:
   php: 'l, F j, Y - H:i'
   intl: 'EEEE, LLLL d, yyyy - kk:mm'
diff --git a/core/modules/system/config/system.date_format.medium.yml b/core/modules/system/config/system.date_format.medium.yml
index 82c18f2..4d18cb4 100644
--- a/core/modules/system/config/system.date_format.medium.yml
+++ b/core/modules/system/config/system.date_format.medium.yml
@@ -4,7 +4,6 @@ label: 'Default medium date'
 status: true
 langcode: en
 locked: false
-locales: {  }
 pattern:
   php: 'D, m/d/Y - H:i'
   intl: 'ccc, MM/dd/yyyy - kk:mm'
diff --git a/core/modules/system/config/system.date_format.short.yml b/core/modules/system/config/system.date_format.short.yml
index bfba918..2bf1a4d 100644
--- a/core/modules/system/config/system.date_format.short.yml
+++ b/core/modules/system/config/system.date_format.short.yml
@@ -4,7 +4,6 @@ label: 'Default short date'
 status: true
 langcode: en
 locked: false
-locales: {  }
 pattern:
   php: 'm/d/Y - H:i'
   intl: 'MM/dd/yyyy - kk:mm'
diff --git a/core/modules/system/lib/Drupal/system/Controller/DateFormatLanguageController.php b/core/modules/system/lib/Drupal/system/Controller/DateFormatLanguageController.php
deleted file mode 100644
index 1f97951..0000000
--- a/core/modules/system/lib/Drupal/system/Controller/DateFormatLanguageController.php
+++ /dev/null
@@ -1,51 +0,0 @@
-<?php
-
-/**
- * @file
- * Contains \Drupal\system\Controller\LanguageDateFormatController.
- */
-
-namespace Drupal\system\Controller;
-
-/**
- * Controller for Language Date Format handling.
- */
-class DateFormatLanguageController {
-
-  /**
-   * Displays edit date format links for each language.
-   *
-   * @return array
-   *   Render array of overview page.
-   */
-  public function overviewPage() {
-
-    $header = array(t('Language'), t('Operations'));
-
-    $languages = language_list();
-    foreach ($languages as $langcode => $language) {
-      $row = array();
-      $row[] = $language->name;
-      $links = array();
-      $links['edit'] = array(
-        'title' => t('Edit'),
-        'href' => 'admin/config/regional/date-time/locale/' . $langcode . '/edit',
-      );
-      $links['reset'] = array(
-        'title' => t('Reset'),
-        'href' => 'admin/config/regional/date-time/locale/' . $langcode . '/reset',
-      );
-      $row[] = array(
-        'data' => array(
-          '#type' => 'operations',
-          '#links' => $links,
-        ),
-      );
-      $rows[] = $row;
-    }
-
-    return array('#theme' => 'table', '#header' => $header, '#rows' => $rows);
-
-  }
-
-}
diff --git a/core/modules/system/lib/Drupal/system/DateFormatInterface.php b/core/modules/system/lib/Drupal/system/DateFormatInterface.php
index 6801494..7a15cb2 100644
--- a/core/modules/system/lib/Drupal/system/DateFormatInterface.php
+++ b/core/modules/system/lib/Drupal/system/DateFormatInterface.php
@@ -40,44 +40,6 @@ public function getPattern($type = DrupalDateTime::PHP);
   public function setPattern($pattern, $type = DrupalDateTime::PHP);
 
   /**
-   * Adds a locale for this date format.
-   *
-   * @param string $locale
-   *   The locale to add for this format.
-   *
-   * @return self
-   *   Returns the date format.
-   */
-  public function addLocale($locale);
-
-  /**
-   * Sets the locales for this date format. This overwrites existing locales.
-   *
-   * @param array $locales
-   *   The array of locales to set for this format.
-   *
-   * @return self
-   *   Returns the date format.
-   */
-  public function setLocales(array $locales);
-
-  /**
-   * Returns an array of the locales for this date format.
-   *
-   * @return array
-   *   An array of locale names.
-   */
-  public function getLocales();
-
-  /**
-   * Determines if this data format has any locales.
-   *
-   * @return bool
-   *   TRUE if the date format has locales, FALSE otherwise.
-   */
-  public function hasLocales();
-
-  /**
    * Determines if this date format is locked.
    *
    * @return bool
diff --git a/core/modules/system/lib/Drupal/system/Entity/DateFormat.php b/core/modules/system/lib/Drupal/system/Entity/DateFormat.php
index fb4c7d3..d1dfca2 100644
--- a/core/modules/system/lib/Drupal/system/Entity/DateFormat.php
+++ b/core/modules/system/lib/Drupal/system/Entity/DateFormat.php
@@ -79,18 +79,12 @@ class DateFormat extends ConfigEntityBase implements DateFormatInterface {
   protected $locked = FALSE;
 
   /**
-   * @var array
-   */
-  protected $locales = array();
-
-  /**
    * {@inheritdoc}
    */
   public function getExportProperties() {
     $properties = parent::getExportProperties();
     $names = array(
       'locked',
-      'locales',
       'pattern',
     );
     foreach ($names as $name) {
@@ -117,78 +111,8 @@ public function setPattern($pattern, $type = DrupalDateTime::PHP) {
   /**
    * {@inheritdoc}
    */
-  public function getLocales() {
-    return $this->locales;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function setLocales(array $locales) {
-    $this->locales = $locales;
-    return $this;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function hasLocales() {
-    return !empty($this->locales);
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function addLocale($locale) {
-    $this->locales[] = $locale;
-    $this->locales = array_unique($this->locales);
-    return $this;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   public function isLocked() {
     return (bool) $this->locked;
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public function preSave(EntityStorageControllerInterface $storage_controller) {
-    parent::preSave($storage_controller);
-
-    if ($this->hasLocales()) {
-      $config_factory = \Drupal::service('config.factory');
-      $properties = $this->getExportProperties();
-      $languages = language_list();
-      // Check if the suggested language codes are configured.
-      foreach ($this->getLocales() as $langcode) {
-        if (isset($languages[$langcode])) {
-          $config_factory->get('locale.config.' . $langcode . '.system.date_format.' . $this->id())
-            ->setData($properties)
-            ->save();
-        }
-      }
-    }
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public static function postDelete(EntityStorageControllerInterface $storage_controller, array $entities) {
-    parent::postDelete($storage_controller, $entities);
-
-    // Clean up the localized entry if required.
-    if (\Drupal::moduleHandler()->moduleExists('language')) {
-      $languages = language_list();
-      foreach ($entities as $entity) {
-        $format_id = $entity->id();
-        foreach ($languages as $langcode => $data) {
-          \Drupal::config("locale.config.$langcode.system.date_format.$format_id")->delete();
-        }
-      }
-    }
-  }
-
 }
diff --git a/core/modules/system/lib/Drupal/system/Form/DateFormatFormBase.php b/core/modules/system/lib/Drupal/system/Form/DateFormatFormBase.php
index be4c55b..cc283af 100644
--- a/core/modules/system/lib/Drupal/system/Form/DateFormatFormBase.php
+++ b/core/modules/system/lib/Drupal/system/Form/DateFormatFormBase.php
@@ -11,6 +11,7 @@
 use Drupal\Core\Ajax\ReplaceCommand;
 use Drupal\Core\Config\Entity\ConfigStorageController;
 use Drupal\Core\Datetime\Date;
+use Drupal\Core\Language\Language;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Drupal\Core\Datetime\DrupalDateTime;
 use Drupal\Core\Entity\Query\QueryFactory;
@@ -168,22 +169,12 @@ public function form(array $form, array &$form_state) {
       '#required' => TRUE,
     );
 
-    $languages = language_list();
-
-    $options = array();
-    foreach ($languages as $langcode => $data) {
-      $options[$langcode] = $data->name;
-    }
-
-    if (!empty($options)) {
-      $form['locales'] = array(
-        '#title' => t('Languages'),
-        '#type' => 'select',
-        '#options' => $options,
-        '#multiple' => TRUE,
-        '#default_value' => $this->entity->getLocales(),
-      );
-    }
+    $form['langcode'] = array(
+      '#type' => 'language_select',
+      '#title' => t('Language'),
+      '#languages' => Language::STATE_ALL,
+      '#default_value' => $this->entity->langcode,
+    );
 
     return parent::form($form, $form_state);
   }
diff --git a/core/modules/system/lib/Drupal/system/Form/DateFormatLocalizeResetForm.php b/core/modules/system/lib/Drupal/system/Form/DateFormatLocalizeResetForm.php
deleted file mode 100644
index 6770e18..0000000
--- a/core/modules/system/lib/Drupal/system/Form/DateFormatLocalizeResetForm.php
+++ /dev/null
@@ -1,117 +0,0 @@
-<?php
-
-/**
- * @file
- * Contains \Drupal\system\Form\DateFormatLocalizeResetForm.
- */
-
-namespace Drupal\system\Form;
-
-use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
-use Drupal\Core\Form\ConfirmFormBase;
-use Drupal\Core\Config\ConfigFactory;
-use Symfony\Component\DependencyInjection\ContainerInterface;
-
-/**
- * Builds a form for enabling a module.
- */
-class DateFormatLocalizeResetForm extends ConfirmFormBase implements ContainerInjectionInterface {
-
-  /**
-   * The language to be reset.
-   *
-   * @var \Drupal\Core\Language\Language;
-   */
-  protected $language;
-
-  /**
-   * The config factory.
-   *
-   * @var \Drupal\Core\Config\ConfigFactory
-   */
-  protected $configFactory;
-
-  /**
-   * Constructs a DateFormatLocalizeResetForm object.
-   *
-   * @param \Drupal\Core\Config\ConfigFactory $config_factory
-   *   The config factory.
-   */
-  public function __construct(ConfigFactory $config_factory) {
-    $this->configFactory = $config_factory;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public static function create(ContainerInterface $container) {
-    return new static(
-      $container->get('config.factory')
-    );
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getFormId() {
-    return 'system_date_format_localize_reset_form';
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getQuestion() {
-    return t('Are you sure you want to reset the date formats for %language to the global defaults?', array(
-      '%language' => $this->language->name,
-    ));
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getConfirmText() {
-    return t('Reset');
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getCancelRoute() {
-    return array(
-      'route_name' => 'system.date_format_language_overview',
-    );
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getDescription() {
-    return t('Resetting will remove all localized date formats for this language. This action cannot be undone.');
-  }
-
-  /**
-   * {@inheritdoc}
-   *
-   * @param string $langcode
-   *   The language code.
-   *
-   */
-  public function buildForm(array $form, array &$form_state, $langcode = NULL) {
-    $this->language = language_load($langcode);
-
-    return parent::buildForm($form, $form_state);
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function submitForm(array &$form, array &$form_state) {
-    foreach (config_get_storage_names_with_prefix('locale.config.' . $this->language->id . '.system.date_format.') as $config_id) {
-      $this->configFactory->get($config_id)->delete();
-    }
-    entity_render_cache_clear();
-
-    $form_state['redirect'] = 'admin/config/regional/date-time/locale';
-  }
-
-}
diff --git a/core/modules/system/lib/Drupal/system/Form/SystemForm.php b/core/modules/system/lib/Drupal/system/Form/SystemForm.php
deleted file mode 100644
index 20b64db..0000000
--- a/core/modules/system/lib/Drupal/system/Form/SystemForm.php
+++ /dev/null
@@ -1,24 +0,0 @@
-<?php
-/**
- * @file
- * Contains \Drupal\system\Form\SystemForm.
- */
-
-namespace Drupal\system\Form;
-
-/**
- * Temporary form controller for system module.
- */
-class SystemForm {
-
-  /**
-   * Wraps system_date_format_localize_form().
-   *
-   * @todo Remove system_date_format_localize_form().
-   */
-  public function localizeDateFormat($langcode) {
-    module_load_include('admin.inc', 'system');
-    return drupal_get_form('system_date_format_localize_form', $langcode);
-  }
-
-}
diff --git a/core/modules/system/system.admin.inc b/core/modules/system/system.admin.inc
index bb8c6b4..29237fd 100644
--- a/core/modules/system/system.admin.inc
+++ b/core/modules/system/system.admin.inc
@@ -779,140 +779,3 @@ function theme_system_themes_page($variables) {
 
   return $output;
 }
-
-/**
- * Form constructor for the date localization configuration form.
- *
- * @param $langcode
- *   The code for the current language.
- *
- * @see locale_menu()
- * @see system_date_format_localize_form_submit()
- * @ingroup forms
- *
- * @deprecated Use \Drupal\system\Form\SystemForm::localizeDateFormat()
- */
-function system_date_format_localize_form($form, &$form_state, $langcode) {
-  // Display the current language name.
-  $form['language'] = array(
-    '#type' => 'item',
-    '#title' => t('Language'),
-    '#markup' => language_load($langcode)->name,
-    '#weight' => -10,
-  );
-  $form['langcode'] = array(
-    '#type' => 'value',
-    '#value' => $langcode,
-  );
-
-  // Get list of available formats.
-  $date_service = \Drupal::service('date');
-  $formats = \Drupal::entityManager()
-    ->getStorageController('date_format')
-    ->loadMultiple();
-  $choices = array();
-  foreach ($formats as $date_format_id => $format_info) {
-    // Ignore values that are localized.
-    if (!$format_info->hasLocales()) {
-      $choices[$date_format_id] = $date_service->format(REQUEST_TIME, $date_format_id);
-    }
-  }
-
-  // Get configured formats for each language.
-  $config_prefix = 'locale.config.' . $langcode . '.system.date_format.';
-  foreach (config_get_storage_names_with_prefix($config_prefix) as $config_id) {
-    $date_format_id = substr($config_id, strlen($config_prefix));
-    $choices[$date_format_id] = $date_service->format(REQUEST_TIME, $date_format_id);
-  }
-
-  // Display a form field for each format type.
-  foreach ($formats as $date_format_id => $format_info) {
-    // Show date format select list.
-    $form['date_formats']['date_format_' . $date_format_id] = array(
-      '#type' => 'select',
-      '#title' => check_plain($format_info->label()),
-      '#attributes' => array('class' => array('date-format')),
-      '#default_value' => isset($choices[$date_format_id]) ? $date_format_id : 'custom',
-      '#options' => $choices,
-    );
-  }
-
-  $form['actions'] = array('#type' => 'actions');
-  $form['actions']['submit'] = array(
-    '#type' => 'submit',
-    '#value' => t('Save configuration'),
-  );
-
-  return $form;
-}
-
-/**
- * Form submission handler for system_date_format_localize_form().
- */
-function system_date_format_localize_form_submit($form, &$form_state) {
-  $langcode = $form_state['values']['langcode'];
-
-  $formats = entity_load_multiple('date_format');
-  foreach ($formats as $date_format_id => $format_info) {
-    if (isset($form_state['values']['date_format_' . $date_format_id])) {
-      $format = $form_state['values']['date_format_' . $date_format_id];
-      system_date_format_localize_form_save($langcode, $date_format_id, $formats[$format]);
-    }
-  }
-  drupal_set_message(t('Configuration saved.'));
-  $form_state['redirect'] = 'admin/config/regional/date-time/locale';
-}
-
-/**
- * Returns HTML for a locale date format form.
- *
- * @param $variables
- *   An associative array containing:
- *   - form: A render element representing the form.
- *
- * @ingroup themeable
- */
-function theme_system_date_format_localize_form($variables) {
-  $form = $variables['form'];
-  $header = array(
-    'machine_name' => t('Machine Name'),
-    'pattern' => t('Format'),
-  );
-
-  foreach (element_children($form['date_formats']) as $key) {
-    $row = array();
-    $row[] = $form['date_formats'][$key]['#title'];
-    unset($form['date_formats'][$key]['#title']);
-    $row[] = array('data' => drupal_render($form['date_formats'][$key]));
-    $rows[] = $row;
-  }
-
-  $table = array(
-    '#theme' => 'table',
-    '#header' => $header,
-    '#rows' => $rows,
-  );
-  $output = drupal_render($form['language']);
-  $output .= drupal_render($table);
-  $output .= drupal_render_children($form);
-
-  return $output;
-}
-
-/**
- * Save locale specific date formats to the database.
- *
- * @param string $langcode
- *   Language code, can be 2 characters, e.g. 'en' or 5 characters, e.g.
- *   'en-CA'.
- * @param string $date_format_id
- *   Date format id, e.g. 'short', 'medium'.
- * @param \Drupal\system\DateFormatInterface $format
- *   The date format entity.
- */
-function system_date_format_localize_form_save($langcode, $date_format_id, DateFormatInterface $format) {
-  $format->addLocale($langcode)->save();
-  \Drupal::config('locale.config.' . $langcode . '.system.date_format.' . $date_format_id)
-    ->set('pattern', $format->get('pattern'))
-    ->save();
-}
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index 66e5a6f..2c29b1c 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -189,9 +189,6 @@ function system_theme() {
     'system_compact_link' => array(
       'variables' => array(),
     ),
-    'system_date_format_localize_form' => array(
-      'render element' => 'form',
-    ),
   ));
 }
 
@@ -822,26 +819,6 @@ function system_menu() {
     'type' => MENU_CALLBACK,
   );
 
-  // Localize date formats.
-  if (\Drupal::moduleHandler()->moduleExists('language')) {
-    $items['admin/config/regional/date-time/locale'] = array(
-      'title' => 'Localize',
-      'description' => 'Configure date formats for each locale',
-      'weight' => -8,
-      'route_name' => 'system.date_format_language_overview',
-    );
-    $items['admin/config/regional/date-time/locale/%/edit'] = array(
-      'title' => 'Localize date formats',
-      'route_name' => 'system.localize_date_format',
-      'description' => 'Configure date formats for each locale',
-    );
-    $items['admin/config/regional/date-time/locale/%/reset'] = array(
-      'title' => 'Reset date formats',
-      'description' => 'Reset localized date formats to global defaults',
-      'route_name' => 'system.date_format_localize_reset',
-    );
-  }
-
   return $items;
 }
 
diff --git a/core/modules/system/system.routing.yml b/core/modules/system/system.routing.yml
index 4281cb4..77a7419 100644
--- a/core/modules/system/system.routing.yml
+++ b/core/modules/system/system.routing.yml
@@ -214,13 +214,6 @@ system.date_format_edit:
   requirements:
     _entity_access: 'date_format.update'
 
-system.date_format_language_overview:
-  path: '/admin/config/regional/date-time/locale'
-  defaults:
-    _controller: '\Drupal\system\Controller\DateFormatLanguageController::overviewPage'
-  requirements:
-    _permission: 'administer site configuration'
-
 system.date_format_delete:
   path: '/admin/config/regional/date-time/formats/manage/{date_format}/delete'
   defaults:
@@ -229,13 +222,6 @@ system.date_format_delete:
   requirements:
     _entity_access: 'date_format.delete'
 
-system.date_format_localize_reset:
-  path: '/admin/config/regional/date-time/locale/{langcode}/reset'
-  defaults:
-    _form: '\Drupal\system\Form\DateFormatLocalizeResetForm'
-  requirements:
-    _permission: 'administer site configuration'
-
 system.modules_list:
   path: '/admin/modules'
   defaults:
@@ -377,13 +363,5 @@ system.batch_page:
   requirements:
     _access: 'TRUE'
 
-system.localize_date_format:
-  path: '/admin/config/regional/date-time/locale/{langcode}/edit'
-  defaults:
-    _content: '\Drupal\system\Form\SystemForm::localizeDateFormat'
-    _title: 'Localize date formats'
-  requirements:
-    _permission: 'administer site configuration'
-
 system.update:
   path: '/core/update.php'