src/soc/intel/xeon_sp/acpi.c: Remove unnecessary .h

Remove the unnecessary header file includes.

Change-Id: I0d849cb236f304b87332aa64b2f10c73cad2d4dd
Signed-off-by: Marc Jones <marcjones@sysproconsulting.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48826
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Jay Talbott <JayTalbott@sysproconsulting.com>
Reviewed-by: Jonathan Zhang <jonzhang@fb.com>

src/soc/intel/xeon_sp/acpi.c

@@ -1,20 +1,8 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
-#include <acpi/acpi_gnvs.h>
-#include <acpi/acpigen.h>
-#include <arch/smp/mpspec.h>
-#include <device/pci.h>
-#include <cbmem.h>
-#include <cpu/x86/smm.h>
 #include <intelblocks/acpi.h>
-#include <intelblocks/lpc_lib.h>
-#include <soc/acpi.h>
-#include <soc/cpu.h>
-#include <soc/intel/common/acpi.h>
 #include <soc/pci_devs.h>
-#include <soc/pm.h>
-#include <soc/soc_util.h>
 #include <soc/util.h>
 #include <string.h>