mainboard/google/kahlee: Remove direct AGESA header includes

All AGESA headers should be included only through agesawrapper.h

I missed this file in the Kahlee cleanup.

BUG=b:66818758
TEST=Build gardenia; Build & boot kahlee

Change-Id: Id9b303cb3cee8088fb5cca5257566c033d28c692
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/22495
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/mainboard/google/kahlee/bootblock/OemCustomize.c

@@ -13,9 +13,7 @@
  * GNU General Public License for more details.
  */
 
-#include <AGESA.h>
 #include <agesawrapper.h>
-#include <PlatformMemoryConfiguration.h>
 
 static const PCIe_PORT_DESCRIPTOR PortList[] = {
 	/* Initialize Port descriptor (PCIe port, Lanes 7:4, D2F1) for NC*/