soc/intel/common/block: Drop empty smm.h

This file has nothing useful. Get rid of it.

Change-Id: Id2a42005d3b4b5161079c9ff48867cfc6fb0413d
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66612
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>

src/soc/intel/common/block/include/intelblocks/smm.h

@@ -1,3 +0,0 @@
-/* SPDX-License-Identifier: CC-PDDC */
-
-/* Please update the license if adding licensable material. */