Clearing NVRAM from Clover shell (not terminal)

I was using a script that creates an SSDT for the USB port limit. I forgot to select the port my keyboard using during the process and on the reboot the script added '-uia_exclude-hs' to NVRAM leaving all USB 2.0 functionality dead in mac OS.

In the Clover boot menu I could remove that boot arg but it always came back. So yeah, how do i clear the NVRAM from Clover shell or have Clover ignore the NVRAM value that is added to the boot arg.