Is the rest of the A/C still connected? If so, just take the brackets off and you are done. If not, you should take all of the underhood A/C hoses off. I would seal the ends up in case you want to use them again or sell them, I think they tend to corrode in air.
Since the belt is off I can guess you don't have a problem where the belt powered anything else important
A few things about disconnecting and removing the AC pump
1. Opening up a system (not having it vacuumed out first) is againist the law in many parts of the country. Freon os nasty stuff for the tress and birds as well as you if you get a big wiff of the stuff
2. If you leave the dryer disconnected they can becomed damaged and unusable.
3. If you have address the above items the pump and hoses can be removed. Suggest that you find plugs or caps to cover any open ends to reduce crud and dirt finding their way into the system
Yeah, I sort of forgot that step-assumed that it was unhooked already. You'll need to got to a full service shop and have them suck all the freon out--shouldn't be much of a charge for it if at all. You'd probably be better off asking them what to disconnect while you are at it. It all comes apart pretty easy .
Freon is kinda dangerous stuff-specially if you get it in your eyes or something like that. Don't just start un-hooking until you know that the system is empty.
Systems often develope leaks and because of this you will not know if you system is full or empty until you go in or crack one of the fittings or the fill valve. .
Years ago we would just crack a valve or loosen one of the hose fittings and walk off until it all drained off. Promblem is that this is illegal in most locations and don't help the enviorment (S?) at all
If you haven't run the system for a long while, it is probably empty but for safety sake, it should be checked by a pro. LIke a said before, go to your local shop and see what they would pull it out for. I am willing to bet that you could find someone who would do it for nothing or next to nothing. It will have to be a full serve shop, not a lube or brake place.
Just tell em your are trying to do the right thing for the environment.