efi-updatevar: remove all authenticated attributes from signature

follow the Commit: 4727744d42ec594d558e5d6c3fcf4c8d63d83186
for sign-efi-sig-list to fix efi-updatevar failure for AMI BIOS.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
1 file changed