@Loren said in 2 questions.:

How do I completely remove the powerblock software (per say) from retropie. I built a SNES with one, but then flashed my image to another card for a different build and I don't need/want it on that build. Is there any way this can be done?

You can find instructions for uninstalling the PowerBlock driver at https://github.com/petrockblog/PowerBlock#uninstalling-the-service-andor-the-binary.