'Delete the specified callback bound to this object.
Args:
callback_name (str): the name of the callback to delete.
number (int): the number of the callback to delete.
Raises:
RuntimeError if the callback is locked.'

def remove(self, callback_name, number):

    handler = type(self).script
    if handler:
        handler.del_callback(self.obj, callback_name, number)
