diff --git a/core/modules/menu/menu.api.php b/core/modules/menu/menu.api.php
deleted file mode 100644
index b18d9cc6..0000000
--- a/core/modules/menu/menu.api.php
+++ /dev/null
@@ -1,76 +0,0 @@
-<?php
-
-/**
- * @file
- * Hooks provided by the Menu module.
- */
-
-/**
- * @addtogroup hooks
- * @{
- */
-
-/**
- * Respond to a custom menu creation.
- *
- * This hook is used to notify modules that a custom menu has been created.
- * Contributed modules may use the information to perform actions based on the
- * information entered into the menu system.
- *
- * @param \Drupal\system\Entity\Menu $menu
- *   A menu entity.
- *
- * @see hook_menu_update()
- * @see hook_menu_delete()
- */
-function hook_menu_insert($menu) {
-  // For example, we track available menus in a variable.
-  $my_menus = variable_get('my_module_menus', array());
-  $my_menus[$menu->id()] = $menu->id();
-  variable_set('my_module_menus', $my_menus);
-}
-
-/**
- * Respond to a custom menu update.
- *
- * This hook is used to notify modules that a custom menu has been updated.
- * Contributed modules may use the information to perform actions based on the
- * information entered into the menu system.
- *
- * @param \Drupal\system\Entity\Menu $menu
- *   A menu entity.
- *
- * @see hook_menu_insert()
- * @see hook_menu_delete()
- */
-function hook_menu_update($menu) {
-  // For example, we track available menus in a variable.
-  $my_menus = variable_get('my_module_menus', array());
-  $my_menus[$menu->id()] = $menu->id();
-  variable_set('my_module_menus', $my_menus);
-}
-
-/**
- * Respond to a custom menu deletion.
- *
- * This hook is used to notify modules that a custom menu along with all links
- * contained in it (if any) has been deleted. Contributed modules may use the
- * information to perform actions based on the information entered into the menu
- * system.
- *
- * @param \Drupal\system\Entity\Menu $menu
- *   A menu entity.
- *
- * @see hook_menu_insert()
- * @see hook_menu_update()
- */
-function hook_menu_delete($menu) {
-  // Delete the record from our variable.
-  $my_menus = variable_get('my_module_menus', array());
-  unset($my_menus[$menu->id()]);
-  variable_set('my_module_menus', $my_menus);
-}
-
-/**
- * @} End of "addtogroup hooks".
- */