message: camera: fix heap corruption
  We need to make sure no one calls us once destructed. Otherwise the
  address sanitizer will yell at us.
diff: @@ -89,6 +89,10 @@ void CameraImpl::deinit()
  _parent->remove_call_every(_request_missing_capture_info_cookie);
  _parent->remove_call_every(_check_connection_status_call_every_cookie);
  _parent->remove_call_every(_status.call_every_cookie);
  + _parent->remove_call_every(_camera_information_call_every_cookie);
  + _parent->remove_call_every(_flight_information_call_every_cookie);
  + _parent->remove_call_every(_mode.call_every_cookie);
  + _parent->remove_call_every(_video_stream_info.call_every_cookie);
  _parent->unregister_all_mavlink_message_handlers(this);
  _parent->cancel_all_param(this);
  