soc/intel/apollolake: Remove dead files

Change a86d1b8 (soc/intel/common: Add SMM common code for Intel
Platforms) moved APL to use common SMM code. However, smi.c and smm.h
files under soc/intel/apollolake/ were not removed. This change
removes the dead files since they are not used anymore.

BUG=b:110836465

Change-Id: I1ff213372521fd47e2335de6a4b438d16c74ecd3
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/27252
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2 files changed