diff --git a/rtc_base/BUILD.gn b/rtc_base/BUILD.gn
index ac1b813805..6cc6be1212 100644
--- a/rtc_base/BUILD.gn
+++ b/rtc_base/BUILD.gn
@@ -119,7 +119,6 @@ rtc_library("rtc_base_approved") {
     "copy_on_write_buffer.h",
     "event_tracer.cc",
     "event_tracer.h",
-    "hash.h",
     "location.cc",
     "location.h",
     "numerics/histogram_percentile_counter.cc",
@@ -1351,7 +1350,6 @@ if (rtc_include_tests) {
         "deprecated/recursive_critical_section_unittest.cc",
         "event_tracer_unittest.cc",
         "event_unittest.cc",
-        "hash_unittest.cc",
         "logging_unittest.cc",
         "numerics/divide_round_unittest.cc",
         "numerics/histogram_percentile_counter_unittest.cc",
diff --git a/rtc_base/hash.h b/rtc_base/hash.h
deleted file mode 100644
index 56d581cdf1..0000000000
--- a/rtc_base/hash.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- *  Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-#ifndef RTC_BASE_HASH_H_
-#define RTC_BASE_HASH_H_
-
-#include <stddef.h>
-
-#include <functional>
-#include <utility>
-
-namespace webrtc {
-
-// A custom hash function for std::pair, to be able to be used as key in a
-// std::unordered_map. If absl::flat_hash_map would ever be used, this is
-// unnecessary as it already has a hash function for std::pair.
-struct PairHash {
-  template <class T1, class T2>
-  size_t operator()(const std::pair<T1, T2>& p) const {
-    return (3 * std::hash<T1>{}(p.first)) ^ std::hash<T2>{}(p.second);
-  }
-};
-
-}  // namespace webrtc
-
-#endif  // RTC_BASE_HASH_H_
diff --git a/rtc_base/hash_unittest.cc b/rtc_base/hash_unittest.cc
deleted file mode 100644
index e86c8a8586..0000000000
--- a/rtc_base/hash_unittest.cc
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- *  Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-#include "rtc_base/hash.h"
-
-#include <string>
-#include <unordered_map>
-#include <unordered_set>
-
-#include "test/gmock.h"
-
-namespace webrtc {
-namespace {
-
-TEST(PairHashTest, CanInsertIntoSet) {
-  using MyPair = std::pair<int, int>;
-
-  std::unordered_set<MyPair, PairHash> pairs;
-
-  pairs.insert({1, 2});
-  pairs.insert({3, 4});
-
-  EXPECT_NE(pairs.find({1, 2}), pairs.end());
-  EXPECT_NE(pairs.find({3, 4}), pairs.end());
-  EXPECT_EQ(pairs.find({1, 3}), pairs.end());
-  EXPECT_EQ(pairs.find({3, 3}), pairs.end());
-}
-
-TEST(PairHashTest, CanInsertIntoMap) {
-  using MyPair = std::pair<std::string, int>;
-
-  std::unordered_map<MyPair, int, PairHash> pairs;
-
-  pairs[{"1", 2}] = 99;
-  pairs[{"3", 4}] = 100;
-
-  EXPECT_EQ((pairs[{"1", 2}]), 99);
-  EXPECT_EQ((pairs[{"3", 4}]), 100);
-  EXPECT_EQ(pairs.find({"1", 3}), pairs.end());
-  EXPECT_EQ(pairs.find({"3", 3}), pairs.end());
-}
-}  // namespace
-}  // namespace webrtc