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diff --git a/src/third_party/boost-1.69.0/boost/algorithm/cxx17/inclusive_scan.hpp b/src/third_party/boost-1.69.0/boost/algorithm/cxx17/inclusive_scan.hpp
deleted file mode 100644
index 5c60c39d20a..00000000000
--- a/src/third_party/boost-1.69.0/boost/algorithm/cxx17/inclusive_scan.hpp
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- Copyright (c) Marshall Clow 2017.
-
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-*/
-
-/// \file transform_reduce.hpp
-/// \brief Combine the (transformed) elements of a sequence (or two) into a single value.
-/// \author Marshall Clow
-
-#ifndef BOOST_ALGORITHM_TRANSFORM_REDUCE_HPP
-#define BOOST_ALGORITHM_TRANSFORM_REDUCE_HPP
-
-#include <functional> // for std::plus
-#include <iterator> // for std::iterator_traits
-
-#include <boost/range/begin.hpp>
-#include <boost/range/end.hpp>
-#include <boost/range/value_type.hpp>
-
-namespace boost { namespace algorithm {
-
-template<class InputIterator, class OutputIterator, class T, class BinaryOperation>
-OutputIterator inclusive_scan(InputIterator first, InputIterator last,
- OutputIterator result, BinaryOperation bOp, T init)
-{
- for (; first != last; ++first, (void) ++result) {
- init = bOp(init, *first);
- *result = init;
- }
- return result;
-}
-
-
-template<class InputIterator, class OutputIterator, class BinaryOperation>
-OutputIterator inclusive_scan(InputIterator first, InputIterator last,
- OutputIterator result, BinaryOperation bOp)
-{
- if (first != last) {
- typename std::iterator_traits<InputIterator>::value_type init = *first;
- *result++ = init;
- if (++first != last)
- return boost::algorithm::inclusive_scan(first, last, result, bOp, init);
- }
-
- return result;
-}
-
-template<class InputIterator, class OutputIterator>
-OutputIterator inclusive_scan(InputIterator first, InputIterator last,
- OutputIterator result)
-{
- typedef typename std::iterator_traits<InputIterator>::value_type VT;
- return boost::algorithm::inclusive_scan(first, last, result, std::plus<VT>());
-}
-
-}} // namespace boost and algorithm
-
-#endif // BOOST_ALGORITHM_TRANSFORM_REDUCE_HPP