Properly from missing mmx64.efi for failed Linux installation

delete-mok-variables.py

import firmware_variables as firmware

mok_namespace = "{605DAB50-E046-4300-ABB6-3DD810DD8B23}"
mok_variables = ["MokNew", "MokAuth"]

with firmware.privileges():
    for name in mok_variables:
        try:
            firmware.delete_variable(name, namespace=mok_namespace)
            print(f"- firmware variable {name} removed")

        except Exception as error:
            print(name, error)