diff --git a/taglib/toolkit/trefcounter.h b/taglib/toolkit/trefcounter.h
deleted file mode 100644
index 95e82547..00000000
--- a/taglib/toolkit/trefcounter.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/***************************************************************************
-    copyright            : (C) 2013 by Tsuda Kageyu
-    email                : tsuda.kageyu@gmail.com
- ***************************************************************************/
-
-/***************************************************************************
- *   This library 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.                     *
- *                                                                         *
- *   This library is distributed in the hope that it will be useful, but   *
- *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
- *   Lesser General Public License for more details.                       *
- *                                                                         *
- *   You should have received a copy of the GNU Lesser General Public      *
- *   License along with this library; if not, write to the Free Software   *
- *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA         *
- *   02110-1301  USA                                                       *
- *                                                                         *
- *   Alternatively, this file is available under the Mozilla Public        *
- *   License Version 1.1.  You may obtain a copy of the License at         *
- *   http://www.mozilla.org/MPL/                                           *
- ***************************************************************************/
-
-#ifndef TAGLIB_REFCOUNTER_H
-#define TAGLIB_REFCOUNTER_H
-
-#include "taglib_export.h"
-#include "taglib.h"
-
-#ifndef DO_NOT_DOCUMENT // Tell Doxygen to skip this class.
-/*!
-  * \internal
-  * This is just used as a base class for shared classes in TagLib.
-  *
-  * \warning This <b>is not</b> part of the TagLib public API!
-  */
-namespace TagLib
-{
-
-  class TAGLIB_EXPORT RefCounter
-  {
-  public:
-    RefCounter();
-    ~RefCounter();
-
-    RefCounter(const RefCounter &) = delete;
-    RefCounter &operator=(const RefCounter &) = delete;
-
-    void ref();
-    bool deref();
-    int count() const;
-
-  private:
-    class RefCounterPrivate;
-    RefCounterPrivate *d;
-  };
-
-}  // namespace TagLib
-
-#endif // DO_NOT_DOCUMENT
-#endif