diff --git a/development.ini b/development.ini
--- a/development.ini
+++ b/development.ini
@@ -219,10 +219,6 @@ issue_sub =
 ## handling that. Set this variable to 403 to return HTTPForbidden
 auth_ret_code =
 
-## locking return code. When repository is locked return this HTTP code. 2XX
-## codes don't break the transactions while 4XX codes do
-lock_ret_code = 423
-
 ## allows to change the repository location in settings page
 allow_repo_location_change = True