controller: Remove dead assignment

Found-by: scan-build 7.0.1-8
Change-Id: I0b88fd23b8aede48a7eb8ad0ae459cead1ef7966
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/memtest86plus/+/34407
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
1 file changed