nb/amd/pi/00730F01/northbridge: remove unneeded AGESA.h include

TEST=Timeless build for pcengines/apu2 results in identical image.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: If95eb9e5135de2b256d1f584afcedfd6e0cf8d8e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74618
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>

src/northbridge/amd/pi/00730F01/northbridge.c

@@ -15,7 +15,6 @@
 #include <lib.h>
 #include <cpu/x86/mp.h>
 #include <Porting.h>
-#include <AGESA.h>
 #include <Topology.h>
 #include <cpu/amd/msr.h>
 #include <cpu/amd/mtrr.h>