Remove broken addons

[≡(Light)≡]

Ballista is fine for me, but since it isn't on the workshop it's an error for new players or people that cleaned up addons.

Personally, it's a couple of days that when I connect to the server, I have to wait for the full download of barret's and rapple's materials and sounds.

Bow uses the same base from the barret and gives the same error.

I think that we need to remove them, and get the gmod.org version of the rapple, or a similar one.