spd.c: Remove dead assignment

Change-Id: I1acae81c9a5b12a118a31c48c3a5d9bca35b8783
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/memtest86plus/+/36704
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
1 file changed