memory: delete smbios_memory_cb and unused modules

Delete smbios_memory_cb, as no platforms using it anymore.

That also leaves us with a bunch of unused modules, so delete them at
the same time.

BUG=b:172343230
TEST=compiles

Change-Id: Idbc388b43b4430596ef61b0dde65aeb794238946
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/mosys/+/2645342
Tested-by: Jack Rosenthal <jrosenth@chromium.org>
Auto-Submit: Jack Rosenthal <jrosenth@chromium.org>
Commit-Queue: Rob Barnes <robbarnes@google.com>
Reviewed-by: Rob Barnes <robbarnes@google.com>
3 files changed