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diff --git a/src/ceph/src/common/utf8.h b/src/ceph/src/common/utf8.h
deleted file mode 100644
index 83efe6f..0000000
--- a/src/ceph/src/common/utf8.h
+++ /dev/null
@@ -1,66 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * Copyright (C) 2011 New Dream Network
- *
- * This is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License version 2.1, as published by the Free Software
- * Foundation.  See file COPYING.
- *
- */
-
-#ifndef CEPH_COMMON_UTF8_H
-#define CEPH_COMMON_UTF8_H
-
-#define MAX_UTF8_SZ 6
-#define INVALID_UTF8_CHAR 0xfffffffful
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Checks if a buffer is valid UTF-8.
- * Returns 0 if it is, and one plus the offset of the first invalid byte
- * if it is not.
- */
-int check_utf8(const char *buf, int len);
-
-/* Checks if a null-terminated string is valid UTF-8.
- * Returns 0 if it is, and one plus the offset of the first invalid byte
- * if it is not.
- */
-int check_utf8_cstr(const char *buf);
-
-/* Returns true if 'ch' is a control character.
- * We do count newline as a control character, but not NULL.
- */
-int is_control_character(int ch);
-
-/* Checks if a buffer contains control characters.
- */
-int check_for_control_characters(const char *buf, int len);
-
-/* Checks if a null-terminated string contains control characters.
- */
-int check_for_control_characters_cstr(const char *buf);
-
-/* Encode a 31-bit UTF8 code point to 'buf'.
- * Assumes buf is of size MAX_UTF8_SZ
- * Returns -1 on failure; number of bytes in the encoded value otherwise.
- */
-int encode_utf8(unsigned long u, unsigned char *buf);
-
-/*
- * Decode a UTF8 character from an array of bytes. Return character code.
- * Upon error, return INVALID_UTF8_CHAR.
- */
-unsigned long decode_utf8(unsigned char *buf, int nbytes);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif