MinPlatformPkg: Clean up duplicated SmramMemoryReserve.h files

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2108



SmramMemoryReserve.h has been added into
Edk2\MdePkg\Include\Guid\SmramMemoryReserve.h.

The duplicated header file can be clean up.
Edk2Platforms\Platform\Intel\MinPlatformPkg\Include\Guid\SmramMemoryReserve.h

Cc: Michael Kubacki <michael.a.kubacki@intel.com>
Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Liming Gao <liming.gao@intel.com>

Co-authored-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
Signed-off-by: Marc W Chen <marc.w.chen@intel.com>
Signed-off-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
Reviewed-by: Chasel Chiu <chasel.chiu@intel.com>