If you put skill points into True Shot, you can use
iZakaroN's SaveEditor to remove them.
Lack of True Shot shouldn't make much difference in an archer's effectiveness. Similarly, I did not put any additional points into Augment Damage for my (sword) warrior until I wanted to use up some spare skill points. The added damage was just not that great (maybe it would take one swing off of a fight sometimes, but nothing significant).
