Well, the whole point of the game is "Werewolves. They Keep Spreading," but what are you asking about giving the wolves back their convo without worrying about the Wolverine balancing you had before. But people can get infected by the Wolverine and another way. I can take him out if it's crazy. If anything I'd taking the body spreading out. Let me know.
I'd say leaving the wolverine in and taking all other wolves out of the game, makes for a pretty interesting and maybe more balanced game.
You'd need some kind of poisonous villagers then for the contagious wolf to die (or lose his power) from, instead of the other wolves.