What Version do you have? Our LANrev remote does not display a message like that.
Oooohhh nice :-)
I'll have to update then. That was a feature request I had, because without the notification box we cannot get such a remote-control system past our german workers council or even the basic laws for data protection.
Sorry that this is not helpful... we are still on 7.2.1 and to not have this box.
Are you asking for a way to let the user hide this notification or for an option to not show the notification at all?
The first should be possible using the "Hide" button, the latter can be configured using custom LANrev Agent settings.