The other day I had a woman call to book an appointment, and she asked me if she needed to do any specific hygenic maintenance "down there". WTF?
Oh, friends. Unless you are told otherwise, no, you don't have to do anything special with your pubic hair before an abortion. Not at all. You don't need to braid it or shave it into a nice big heart. You don't need to wax it all off. You don't even need to trim it, really. I can't speak for the doctors, but I would imagine they see many, many cunts in the course of a week and I doubt they are picky about the aesthetics.
Just keep it as clean as you normally would. Take a deep breath. Leave it up to the universe.