Remove the attack from wall turrets.
Wall turrets/towers have more HP & are cheaper than free-standing towers, and have no build restriction distance. Their attack, while limited, is still high when garrisoned, and this makes them awkward to balance and is poor design in general.
This removes their attack capability entirely, and standardizes the rest of their statistics.
Patch by: Nescio
Accepted By: borg-, wowgetoffyourcellphone, wraitii
Differential Revision: https://code.wildfiregames.com/D3706