Cancel linking or unlinking mode

def cancel_link_unlink_mode(self):
        """Cancel linking or unlinking mode"""
        self.logger.info("cancel_link_unlink_mode")
        self.scene_command('08')
        # should send http://0.0.0.0/0?08=I=0

        ## TODO check return status
        status = self.hub.get_buffer_status()
        return status