the holy damage you are talking about is the elemental type of the weapons damage. if you roll it away you will literally do no damage at all.
You should not do it. In general the type of element can be neglegted. There are only some cases where this is important.
The only way to have int dmg% and CDR and a socket on a weapon is to use ramaladni's gift to get a free socket, thus you have 3 free stat slots + the weapon damage.