Commit cc1db7f347 ("Updates for secure boot") and commit 8e8de459e7
("Forgot to remove dropped patches") removed the patches that added
Kconfig symbols EFI_SIGNATURE_LIST_PARSER and LOAD_UEFI_KEYS. Remove
these symbols from the configuration generation directory and from the
shipped .config files.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>