dmi: Remove nonsense guard; Makefile handles it

Change-Id: If4216be1f9ed308e4580c36d0356480e637ffc82
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/28715
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1 file changed