diff --git a/core/lib/Drupal/Core/Entity/Annotation/EntityType.php b/core/lib/Drupal/Core/Entity/Annotation/EntityType.php
index 1e931f5..0171dd5 100644
--- a/core/lib/Drupal/Core/Entity/Annotation/EntityType.php
+++ b/core/lib/Drupal/Core/Entity/Annotation/EntityType.php
@@ -161,17 +161,9 @@ class EntityType extends Plugin {
   public $translatable = FALSE;
 
   /**
-   * Array marking the entity type as translatable.
-   *
-   * This is used to register field translation handlers and thus mark the
-   * entity type as translatable. Additionally it could be used to provide
-   * translation-handler specific data.
+   * @todo content_translation_entity_info_alter() uses this but it is undocumented.
    *
    * @var array
-   *
-   * @deprecated The entire concept of field translation handler has been
-   *   removed. This will no longer be used. Use the "translatable" property
-   *   instead.
    */
   public $translation = array();