Issue #2905722 by vaplas: Media specifies an admin-form link relation, but should not

core/modules/media/src/Entity/Media.php

@@ -77,7 +77,6 @@
  *     "delete-form" = "/media/{media}/delete",
  *     "edit-form" = "/media/{media}/edit",
  *     "revision" = "/media/{media}/revisions/{media_revision}/view",
- *     "admin-form" = "/admin/structure/media/manage/{media_type}"
  *   }
  * )
  */