remove debug output

apps/files/ajax/download.php

@@ -34,10 +34,9 @@ $files = $_GET["files"];
 $dir = $_GET["dir"];
 
 $files_list = json_decode($files);
+// in case we get only a single file
 if ($files_list === NULL ) {
 	$files_list = array($files);
 }
 
-foreach ($files_list as $f) error_log("file: $f");
-
 OC_Files::get($dir, $files_list, $_SERVER['REQUEST_METHOD'] == 'HEAD' ? true : false);