diff --git a/core/modules/settings_tray/settings_tray.routing.yml b/core/modules/settings_tray/settings_tray.routing.yml
index 8d74d6ac23..01109e4c79 100644
--- a/core/modules/settings_tray/settings_tray.routing.yml
+++ b/core/modules/settings_tray/settings_tray.routing.yml
@@ -6,10 +6,3 @@ entity.block.off_canvas_form:
   requirements:
     _permission: 'administer blocks'
     _access_block_plugin_has_settings_tray_form: 'TRUE'
-settings_tray.overridden_block_notice:
-  path: '/admin/settings-tray-overridden/{block}'
-  defaults:
-    _controller: '\Drupal\settings_tray\Controller\OverriddenBlockConfig::overrideNotice'
-    _title_callback: '\Drupal\settings_tray\Block\BlockEntityOffCanvasForm::title'
-  requirements:
-    _permission: 'administer blocks'
diff --git a/core/modules/settings_tray/src/Controller/OverriddenBlockConfig.php b/core/modules/settings_tray/src/Controller/OverriddenBlockConfig.php
deleted file mode 100644
index 50efd38d7c..0000000000
--- a/core/modules/settings_tray/src/Controller/OverriddenBlockConfig.php
+++ /dev/null
@@ -1,48 +0,0 @@
-<?php
-
-namespace Drupal\settings_tray\Controller;
-
-use Drupal\block\BlockInterface;
-use Drupal\Core\StringTranslation\StringTranslationTrait;
-use Drupal\Core\Url;
-
-/**
- * Controller to display overridden block notice and edit link.
- *
- * Overridden blocks cannot be overridden in Settings Tray functionality
- * because there is no uniform method for editing any potential configuration
- * override.
- *
- * @see settings_tray_block_view_alter()
- */
-class OverriddenBlockConfig {
-
-  use StringTranslationTrait;
-
-  /**
-   * Provides a notice for overridden blocks and a link to edit them.
-   *
-   * @param \Drupal\block\BlockInterface $block
-   *   The block that is overridden.
-   *
-   * @return array
-   *   The render array for the notice and block edit link.
-   */
-  public function overrideNotice(BlockInterface $block) {
-    return [
-      'message' => [
-        '#type' => 'markup',
-        '#markup' => '<p>' . $this->t('This block cannot be edited in the Settings Tray form because it has configuration overrides in effect.') . '</p>',
-      ],
-      'link' => [
-        '#type' => 'link',
-        '#title' => $this->t('Edit block'),
-        '#url' => Url::fromRoute('entity.block.edit_form')
-          ->setRouteParameter('block', $block->id())
-          ->setOption('query', ['destination' => \Drupal::request()->get('destination')]),
-      ],
-    ];
-
-  }
-
-}