1 files changed, 0 insertions, 36 deletions
diff --git a/third_party/immer/immer/detail/ref_count_base.hpp b/third_party/immer/immer/detail/ref_count_base.hpp
deleted file mode 100644
index 28f2e46a99f9..000000000000
--- a/third_party/immer/immer/detail/ref_count_base.hpp
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-// immer: immutable data structures for C++
-// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
-//
-// This software is distributed under the Boost Software License, Version 1.0.
-// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
-//
-
-#pragma once
-
-#include <atomic>
-
-namespace immer {
-namespace detail {
-
-template <typename Deriv>
-struct ref_count_base
-{
-    mutable std::atomic<int> ref_count{0};
-
-    friend void intrusive_ptr_add_ref(const Deriv* x)
-    {
-        x->ref_count.fetch_add(1, std::memory_order_relaxed);
-    }
-
-    friend void intrusive_ptr_release(const Deriv* x)
-    {
-        if (x->ref_count.fetch_sub(1, std::memory_order_release) == 1) {
-            std::atomic_thread_fence(std::memory_order_acquire);
-            delete x;
-        }
-    }
-};
-
-} /* namespace detail */
-} /* namespace immer */