Remove unnecessary permission object instatiations.

core/menu/menu_delete.php

@@ -64,7 +64,6 @@ else {
 			unset($array);
 
 		//revoke temporary permissions
-			$p = new permissions;
 			$p->delete('menu_delete', 'temp');
 			$p->delete('menu_item_delete', 'temp');
 			$p->delete('menu_item_group_delete', 'temp');

logout.php

@@ -91,7 +91,6 @@
 							$database->save($array);
 							unset($array);
 						//revoke temporary permissions
-							$p = new permissions;
 							$p->delete('user_setting_add', 'temp');
 					}
 			}