just unplug it. If it runs better then do the delete. If the bike is fine leave it. Yes the short rear cable is way better than the long one with the parking brake. Then you can get rid of the crap brake lever and get a decent shorty one. If you have any questions send me a PM. i have a few left over plastics and a gas tank. and front hubs i was going to refinish if you want them for spars or to mess with. For free. just collecting dust.