Removal hack?

I remember using it in BishPop's hack and it was amazing, made my FPS skyrocket to 100+. What exactly does it remove and can I do it myself manually without hacking?

No, no, it was in a release by BishPop a week or two ago. Like the hot key was bound to F11 and when you pressed it, nothing really was removed and the only noticeable difference was that your character became a little darker but god did my FPS soar to over 100.