AGESA boards: Clean up Ids.h and Filecode.h includes

Change-Id: I9cb63ff58900a39d7cd8e3da2b9a9a95c2a41a69
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/21484
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/mainboard/amd/thatcher/OemCustomize.c

@@ -15,14 +15,11 @@
 
 #include "AGESA.h"
 #include "amdlib.h"
-#include "Ids.h"
 #include "heapManager.h"
 #include <PlatformMemoryConfiguration.h>
-#include "Filecode.h"
 
 #include <northbridge/amd/agesa/state_machine.h>
 
-#define FILECODE PROC_GNB_PCIE_FAMILY_0X15_F15PCIECOMPLEXCONFIG_FILECODE
 
 /*
  * Lane ID Mapping (from Fam15h BKDG: Table 45: Lane Id Mapping)