Looking to remove door hinges

You can’t remove it. It is welded on.

Ok, well obviously mine are off so there must be screws that need to come off. I don’t remember how I did it but I will try to remember to look at it tomorrow afternoon when I get home.

What bit is it?

It is a special one that I had to go buy, it’s basically a allen wrench with a hole in the middle to fit over the nipple sticking up through the center of the screw/bolt head. I got a whole set of them at Harbor Freight pretty reasonable.

Tamperproof Torx or security Torx, safety Torx etc.

As I permanently removed my doors I took a small chisel punch and just broke the little nub inside the bolt head and used a regular torn bit.