diff --git a/toonz/sources/include/tcg/boost/zipped_range.h b/toonz/sources/include/tcg/boost/zipped_range.h
deleted file mode 100644
index 1810f9d..0000000
--- a/toonz/sources/include/tcg/boost/zipped_range.h
+++ /dev/null
@@ -1,45 +0,0 @@
-#pragma once
-
-#ifndef ZIPPED_RANGE_H
-#define ZIPPED_RANGE_H
-
-// boost includes
-#include <boost/range.hpp>
-#include <boost/iterator/zip_iterator.hpp>
-
-/*!
-  \file     zipped_range.h
-
-  \brief    Contains a range creator for boost::zip_iterator objects.
-  \remark   Zipped ranges are currently constrained to a 2-tuple.
-*/
-
-namespace tcg {
-
-template <typename Rng1, typename Rng2>
-struct _zip_rng_traits {
-  typedef boost::zip_iterator<
-      boost::tuple<typename boost::range_iterator<Rng1>::type,
-                   typename boost::range_iterator<Rng2>::type>>
-      iterator;
-  typedef std::pair<iterator, iterator> range;
-};
-
-//**********************************************************************************
-//    Permuted Range  creator
-//**********************************************************************************
-
-template <typename Rng1, typename Rng2>
-typename _zip_rng_traits<Rng1, Rng2>::range zipped_range(Rng1 &rng1,
-                                                         Rng2 &rng2) {
-  typedef typename _zip_rng_traits<Rng1, Rng2>::range range;
-  typedef typename _zip_rng_traits<Rng1, Rng2>::iterator iterator;
-
-  return range(
-      iterator(boost::make_tuple(boost::begin(rng1), boost::begin(rng2))),
-      iterator(boost::make_tuple(boost::end(rng1), boost::end(rng2))));
-}
-
-}  // namespace tcg
-
-#endif  // ZIPPED_RANGE_H