Do not retrieve storage stats for trash bin

apps/files_trashbin/js/trash.js

@@ -25,6 +25,11 @@ $(document).ready(function() {
 		enableActions();
 	}
 
+	Files.updateStorageStatistics = function() {
+		// no op because the trashbin doesn't have
+		// storage info like free space / used space
+	};
+
 	if (typeof FileActions !== 'undefined') {
 		FileActions.register('all', 'Restore', OC.PERMISSION_READ, OC.imagePath('core', 'actions/history'), function(filename) {
 			var tr = FileList.findFileEl(filename);