diff --git a/core/modules/language/tests/language_elements_test/lib/Drupal/language_elements_test/Form/LanguageConfigurationElement.php b/core/modules/language/tests/language_elements_test/lib/Drupal/language_elements_test/Form/LanguageConfigurationElement.php
index 085165c..58d2d0d 100644
--- a/core/modules/language/tests/language_elements_test/lib/Drupal/language_elements_test/Form/LanguageConfigurationElement.php
+++ b/core/modules/language/tests/language_elements_test/lib/Drupal/language_elements_test/Form/LanguageConfigurationElement.php
@@ -46,12 +46,6 @@ public function buildForm(array $form, array &$form_state, $pid = NULL) {
   /**
    * {@inheritdoc}
    */
-  public function validateForm(array &$form, array &$form_state) {
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   public function submitForm(array &$form, array &$form_state) {
   }
 }
diff --git a/core/modules/language/tests/language_elements_test/lib/Drupal/language_elements_test/Form/LanguageConfigurationElementTest.php b/core/modules/language/tests/language_elements_test/lib/Drupal/language_elements_test/Form/LanguageConfigurationElementTest.php
index fa0f3c7..274c56b 100644
--- a/core/modules/language/tests/language_elements_test/lib/Drupal/language_elements_test/Form/LanguageConfigurationElementTest.php
+++ b/core/modules/language/tests/language_elements_test/lib/Drupal/language_elements_test/Form/LanguageConfigurationElementTest.php
@@ -35,12 +35,6 @@ public function buildForm(array $form, array &$form_state, $pid = NULL) {
   /**
    * {@inheritdoc}
    */
-  public function validateForm(array &$form, array &$form_state) {
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   public function submitForm(array &$form, array &$form_state) {
   }
 }