Remove unused files, and tidy the directory structure of the remaining ones.

Review URL: http://codereview.chromium.org/2815011

firmware/lib/cgptlib/include/crc32.h

@@ -0,0 +1,12 @@
+/* Copyright (c) 2010 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.
+ */
+#ifndef VBOOT_REFERENCE_GPT_CRC32_H_
+#define VBOOT_REFERENCE_GPT_CRC32_H_
+
+#include "sysincludes.h"
+
+uint32_t Crc32(const void *buffer, uint32_t len);
+
+#endif  /* VBOOT_REFERENCE_GPT_CRC32_H_ */