db-schema/db_scripts/diff/15349.down

use provisioning;
set autocommit=0;

set @pid = 0;
select id into @pid from voip_preferences where attribute = "lock";

DELETE FROM voip_preferences_enum
 WHERE preference_id = @pid
   AND label = 'none'
   AND value = 0
   AND default_val = 0;

commit;