They're unused. Also drop some unused defines in system.h Change-Id: Ia5afc3a676a4a94787041430f05d08f333033c73 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2404 Reviewed-by: David Hendricks <dhendrix@chromium.org> Tested-by: build bot (Jenkins)