Revert "Verified boot wrapper - replace utility functions"

This reverts commit bd81b3a7d3.

Change-Id: I2be2c076a37bf0e49569248691fceac417254f0b
Reviewed-on: http://gerrit.chromium.org/gerrit/3295
Reviewed-by: mukesh agrawal <quiche@chromium.org>
Tested-by: mukesh agrawal <quiche@chromium.org>

firmware/lib/rollback_index.c

@@ -1,4 +1,4 @@
-/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+/* Copyright (c) 2010-2011 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
@@ -7,11 +7,11 @@
  */
 
 #include "rollback_index.h"
+
 #include "tlcl.h"
 #include "tpm_bootmode.h"
 #include "tss_constants.h"
 #include "utility.h"
-#include "vboot_api.h"
 
 static int g_rollback_recovery_mode = 0;