Is there any way to uninstall Access Keys?

I added the Eye Of The North trial key and the trial has run out, but I still have outposts from EotN, Heroes, etc, even though I can't travel to or use them. Is their any way to uninstall the key and get rid of this?

Thanks for any answers.

No.

The easiest solution would be to buy EotN, of course ^^

That's the easiest solution if it bugs you so much.