Remove a permission from a queue.

        :type label: str or unicode
        :param label: The unique label associated with the permission being removed.

        :rtype: bool
        :return: True if successful, False otherwise.

def remove_permission(self, label, callback=None):
        """
        Remove a permission from a queue.

        :type label: str or unicode
        :param label: The unique label associated with the permission being removed.

        :rtype: bool
        :return: True if successful, False otherwise.
        """
        return self.connection.remove_permission(self, label, callback=callback)