Why hack anything off at all? Leave it on there so that when you decide you want another frame, you can sell this one and make your money back and then some. If you hack stuff, the frame becomes worthless.
Good fixie candidate; long horizontal dropouts, standard bottom bracket and headset dimensions. Stamped dropouts and no tubing stickers so not an expensive frame. Still, no need to be grinding braze-ons off. If you want a frame with nothing on it; eBay has a ton for ~$125. Track geometry, too.