hotline #27346 remove overkill deletion

cosmogramme/sql/patch/patch_263.php

@@ -3,10 +3,6 @@
 
 $adapter = Zend_Registry::get('sql');
 
-/* Delete user_group_permissions if they were created before default permissions */
-if(!$adapter->query("SELECT * FROM `permission` WHERE code = 'CATEGORY' OR code = 'ARTICLE' OR code = 'PENDING' OR code = 'VALIDATED' OR code = 'REFUSED' OR code = 'ARCHIVED'"))
-	$adapter->query("DELETE FROM `user_group_permission`;");
-
 if(!$adapter->query("SELECT * FROM `permission` WHERE code = 'CATEGORY' LIMIT 1;"))
 	$adapter->query("insert into `permission` (code, module, type, sorting, description) VALUES ('CATEGORY', 'ARTICLE', 'Droits', 1, 'Créer des sous-catégories et des articles')");