Rabbits teeth, unless they are deformed are self sharpening and keep themselves at the correct length as they eat by rubbing top and bottom together....a vet would HAVE TO file them down if they didn't meet properly but doing this unneccessarily would probably prevent the animal from eating in the way it should.
Just live with a chewed wall or as chimney said prevent it from getting to the wall..............
The vet can clip the teeth if they are growing too long (i.e. not wearing down naturally), but having them shaved to stop them eating your wall is bordering on cosmetic surgery and I don't imagine any vet would condone such a thing.
Give it wooden chewy things to gnaw on and read some information on keeping rabbits.