soc/amd/picasso/romstage: removed unused include

Change-Id: I550599ae5ef9875ce820a4534d21439ff2027585
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41513
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

src/soc/amd/picasso/romstage.c

@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <arch/cpu.h>
-#include <arch/romstage.h>
 #include <acpi/acpi.h>
 #include <cpu/x86/cache.h>
 #include <cpu/x86/msr.h>