fix check for success

files/ajax/delete.php

@@ -20,7 +20,7 @@ foreach($files as $file) {
 	}
 }
 
-if(success) {
+if($success) {
 	OC_JSON::success(array("data" => array( "dir" => $dir, "files" => $files )));
 } else {
 	OC_JSON::error(array("data" => array( "message" => "Could not delete:\n" . $filesWithError )));