Do mean grind it down? I would not.His main problem is his beak. He has stubs not spurs. I think im gonna give it down but I don't want him to hate me for it.
If you can't train to have better social skills, you will more than likely have to dispatch him.
You will not be able to find a home for an aggressive rooster, he will end up in freezer camp, whether you do it or give him to someone who will