AGESA boards: Drop heapManager.h includes

Change-Id: I1a96b1c6181cd657d7aee82370ef86acd688cc94
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/21483
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/cpu/amd/agesa/heapmanager.c

@@ -14,7 +14,6 @@
 
 #include "AGESA.h"
 #include "amdlib.h"
-#include "heapManager.h"
 
 #include <cbmem.h>
 #include <northbridge/amd/agesa/agesa_helper.h>