bug 3171 fixed: no need to double escape the file name from HTML5 upload

git-svn-id: http://piwigo.org/svn/trunk@30375 68402e56-0260-453c-a942-63ccdbb3a9ee

include/ws_functions/pwg.images.php

@@ -1349,7 +1349,7 @@ function ws_images_upload($params, $service)
     
     $image_id = add_uploaded_file(
       $filePath,
-      $params['name'],
+      stripslashes($params['name']), // function add_uploaded_file will secure before insert
       $params['category'],
       $params['level'],
       null // image_id = not provided, this is a new photo