spi4ba: Drop now obsolete, redundant functions

Change-Id: I1d04448fd1acbfc37b8e17288f497a4292dfd6d6
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/22387
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed