Remove order on parent for new behavior of order

category.py

@@ -25,7 +25,6 @@ class Category(OSV):
             ('check_recursion',
              'Error! You can not create recursive categories.', ['parent'])
         ]
-        self._order.insert(0, ('parent', 'ASC'))
         self._order.insert(1, ('name', 'ASC'))
 
     def default_active(self, cursor, user, context=None):