Remove XP and gold from mounts

[Fingus]

I would like to have the XP and gold you get for killing a horse removed. As of now all I can do is shout and watch as my teammates kills my mount, or one I need. When dehorsed, I am pretty useless and need to be able to get a new one. Without the incentive to kill a horse, I hope there will be slightly larger chance for me to ride again, once dehorsed.