diff --git a/core/modules/system/tests/modules/entity_reference_test/entity_reference_test.module b/core/modules/system/tests/modules/entity_reference_test/entity_reference_test.module
index 54f3757..51b506b 100644
--- a/core/modules/system/tests/modules/entity_reference_test/entity_reference_test.module
+++ b/core/modules/system/tests/modules/entity_reference_test/entity_reference_test.module
@@ -21,14 +21,6 @@ function entity_reference_test_entity_base_field_info(EntityTypeInterface $entit
       ->setSetting('target_type', 'user_role')
       ->setSetting('handler', 'default');
   }
-  if ($entity_type->id() == 'entity_test_rev' && \Drupal::state()->get('entity_reference_test.entity_test_rev')) {
-    $fields['field_test'] = BaseFieldDefinition::create('entity_reference')
-      ->setLabel(t('Field test'))
-      ->setDescription(t('The test reference field.'))
-      ->setSetting('target_type', 'entity_test_mulrev')
-      ->setSetting('handler', 'default')
-      ->setSetting('handler_settings', ['target_bundles' => ['entity_test_rev']]);
-  }
 
   return $fields;
 }