Enable Rails/HasAndBelongsToMany cop
Enable Rails/HasAndBelongsToMany cop

Deletes the explicit disabling, relying on the Rails default enabling

MushroomObserver/mushroom-observer,MushroomObserver/mushroom-observer,MushroomObserver/mushroom-observer,MushroomObserver/mushroom-observer,MushroomObserver/mushroom-observer,MushroomObserver/mushroom-observer,MushroomObserver/mushroom-observer