diff --git a/include/o3tl/ptr_container.hxx b/include/o3tl/ptr_container.hxx
deleted file mode 100644
index e89e56786061..000000000000
--- a/include/o3tl/ptr_container.hxx
+++ /dev/null
@@ -1,61 +0,0 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-/*
- * This file is part of the LibreOffice project.
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- */
-
-#ifndef INCLUDED_O3TL_PTR_CONTAINER_HXX
-#define INCLUDED_O3TL_PTR_CONTAINER_HXX
-
-#include <sal/config.h>
-
-#include <memory>
-#include <utility>
-
-// Some glue for using std::unique_ptr with the Boost Pointer Container Library:
-
-namespace o3tl { namespace ptr_container {
-
-template<typename C, typename T> inline std::pair<typename C::iterator, bool>
-insert(C & container, std::unique_ptr<T> && element) {
-    std::pair<typename C::iterator, bool> r(container.insert(element.get()));
-    element.release();
-    return r;
-}
-
-template<typename C, typename T> inline std::pair<typename C::iterator, bool>
-insert(
-    C & container, typename C::key_type const & key,
-    std::unique_ptr<T> && element)
-{
-    // At least Boost <= 1.56.0 boost::ptr_map_adaptor has odd key const-ness
-    // discrepancy between
-    //
-    //   std::pair<iterator,bool> insert( key_type& k, T* x )
-    //
-    // and
-    //
-    //   template< class U >
-    //   std::pair<iterator,bool> insert( const key_type& k,
-    //                                    std::auto_ptr<U> x )
-    std::pair<typename C::iterator, bool> r(
-        container.insert(
-            const_cast<typename C::key_type &>(key), element.get()));
-    element.release();
-    return r;
-}
-
-template<typename C, typename T>
-inline void push_back(C & container, std::unique_ptr<T> && element) {
-    container.push_back(element.get());
-    element.release();
-}
-
-} }
-
-#endif
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */