Index: src/wp-includes/media.php
===================================================================
--- src/wp-includes/media.php	(revision 29710)
+++ src/wp-includes/media.php	(working copy)
@@ -2927,7 +2927,6 @@
 		'createNewVideoPlaylist' => __( 'Create a new video playlist' ),
 		'returnToLibrary'        => __( '&#8592; Return to library' ),
 		'allMediaItems'          => __( 'All media items' ),
-		'allMediaTypes'          => __( 'All media types' ),
 		'allDates'               => __( 'All dates' ),
 		'noItemsFound'           => __( 'No items found.' ),
 		'insertIntoPost'         => $hier ? __( 'Insert into page' ) : __( 'Insert into post' ),
