License Plate Bracket

Eye Sore Much. Im trying to get rid of it but i have no tools to fit what looks like a 3 notch screw thats holding it in. How does my plate holder come off the front bumper of my car? 2001 z24, if you dont know.

Thanks

On my 2000 Cavalier, I just yanked it off and it popped right off. But for my 2003 Cavalier, the holder seems to be the same but I can't really find a way to get it off either. From looking at my 2000's holder, If you press a small screwdriver in the hole and just press backwards it should undo the rivet, I haven't taken much time to figure it out, because I plan on replacing my entire front bumper cover anyways (Previous owner misjudged the height of the front lip quite a bit ><). But I wouldnt mind losing this thing if anyone knows definately how to do it.