remove unused commented call

static/admin.js

@@ -89,7 +89,6 @@ function buildDirectoryTreeWithData(path_info)
 		sub_list.appendChild(s);
 		sub_list.removeChild(sub_list.querySelector('form'));
 	} else {
-		//sub_list.querySelector('form').addEventListener('change', onMediaTypeChanged);
 		sub_list.querySelector('form').addEventListener('change', function(e){
 			updateMediaType(sub_list, e.target.value);
 		});