How hard is it to remove a European-style rear-wheel ring lock? I have an old Breezer Uptown 8 with a European-style ring lock on the rear wheel. I am thinking of removing it. Does anyone have experience doing this? Is it as easy as unscrewing a bolt? It looks like maybe it is bolted on with the fender mount.

I am worried that this may be very difficult because if it was not, the lock would not be very useful.
Performed the operation today and it was, as suggested, very easy. Simply unscrewed a bolt on each side affixing the lock to the seat stays. For mine, the lock did not obstruct these bolts. I was then able to twist the ring lock and pull off the wheel, around the fenders, without any more fuss.