diff --git a/modules/audio_coding/BUILD.gn b/modules/audio_coding/BUILD.gn
index c9b75a5a17..14f45b121e 100644
--- a/modules/audio_coding/BUILD.gn
+++ b/modules/audio_coding/BUILD.gn
@@ -1292,7 +1292,6 @@ if (rtc_include_tests) {
     visibility += webrtc_default_visibility
 
     sources = [
-      "test/ACMTest.h",
       "test/Channel.cc",
       "test/Channel.h",
       "test/EncodeDecodeTest.cc",
diff --git a/modules/audio_coding/test/ACMTest.h b/modules/audio_coding/test/ACMTest.h
deleted file mode 100644
index 3fc97ca31b..0000000000
--- a/modules/audio_coding/test/ACMTest.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- *  Copyright (c) 2011 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 MODULES_AUDIO_CODING_TEST_ACMTEST_H_
-#define MODULES_AUDIO_CODING_TEST_ACMTEST_H_
-
-class ACMTest {
- public:
-  ACMTest() {}
-  virtual ~ACMTest() {}
-  virtual void Perform() = 0;
-};
-
-#endif  // MODULES_AUDIO_CODING_TEST_ACMTEST_H_
diff --git a/modules/audio_coding/test/EncodeDecodeTest.h b/modules/audio_coding/test/EncodeDecodeTest.h
index 7a21cb5eaa..9132d717e2 100644
--- a/modules/audio_coding/test/EncodeDecodeTest.h
+++ b/modules/audio_coding/test/EncodeDecodeTest.h
@@ -15,7 +15,6 @@
 #include <string.h>
 
 #include "modules/audio_coding/include/audio_coding_module.h"
-#include "modules/audio_coding/test/ACMTest.h"
 #include "modules/audio_coding/test/PCMFile.h"
 #include "modules/audio_coding/test/RTPFile.h"
 #include "modules/include/module_common_types.h"
@@ -95,10 +94,10 @@ class Receiver {
   uint32_t _nextTime;
 };
 
-class EncodeDecodeTest : public ACMTest {
+class EncodeDecodeTest {
  public:
   explicit EncodeDecodeTest(int test_mode);
-  void Perform() override;
+  void Perform();
 
   uint16_t _playoutFreq;
 
diff --git a/modules/audio_coding/test/PacketLossTest.h b/modules/audio_coding/test/PacketLossTest.h
index f6f92db1ad..6018301dff 100644
--- a/modules/audio_coding/test/PacketLossTest.h
+++ b/modules/audio_coding/test/PacketLossTest.h
@@ -53,7 +53,7 @@ class SenderWithFEC : public Sender {
   int expected_loss_rate_;
 };
 
-class PacketLossTest : public ACMTest {
+class PacketLossTest {
  public:
   PacketLossTest(int channels,
                  int expected_loss_rate_,
diff --git a/modules/audio_coding/test/TestAllCodecs.h b/modules/audio_coding/test/TestAllCodecs.h
index 03539ffd84..669a118f47 100644
--- a/modules/audio_coding/test/TestAllCodecs.h
+++ b/modules/audio_coding/test/TestAllCodecs.h
@@ -13,7 +13,6 @@
 
 #include <memory>
 
-#include "modules/audio_coding/test/ACMTest.h"
 #include "modules/audio_coding/test/Channel.h"
 #include "modules/audio_coding/test/PCMFile.h"
 
@@ -47,12 +46,12 @@ class TestPack : public AudioPacketizationCallback {
   size_t payload_size_;
 };
 
-class TestAllCodecs : public ACMTest {
+class TestAllCodecs {
  public:
   explicit TestAllCodecs(int test_mode);
   ~TestAllCodecs();
 
-  void Perform() override;
+  void Perform();
 
  private:
   // The default value of '-1' indicates that the registration is based only on
diff --git a/modules/audio_coding/test/TestRedFec.h b/modules/audio_coding/test/TestRedFec.h
index 1d9dead0bc..3b3fd1724f 100644
--- a/modules/audio_coding/test/TestRedFec.h
+++ b/modules/audio_coding/test/TestRedFec.h
@@ -14,13 +14,12 @@
 #include <memory>
 #include <string>
 
-#include "modules/audio_coding/test/ACMTest.h"
 #include "modules/audio_coding/test/Channel.h"
 #include "modules/audio_coding/test/PCMFile.h"
 
 namespace webrtc {
 
-class TestRedFec : public ACMTest {
+class TestRedFec {
  public:
   explicit TestRedFec();
   ~TestRedFec();
diff --git a/modules/audio_coding/test/TestStereo.h b/modules/audio_coding/test/TestStereo.h
index d449d6dc7f..0d80631b37 100644
--- a/modules/audio_coding/test/TestStereo.h
+++ b/modules/audio_coding/test/TestStereo.h
@@ -15,7 +15,6 @@
 
 #include <memory>
 
-#include "modules/audio_coding/test/ACMTest.h"
 #include "modules/audio_coding/test/Channel.h"
 #include "modules/audio_coding/test/PCMFile.h"
 
@@ -57,12 +56,12 @@ class TestPackStereo : public AudioPacketizationCallback {
   bool lost_packet_;
 };
 
-class TestStereo : public ACMTest {
+class TestStereo {
  public:
   explicit TestStereo(int test_mode);
   ~TestStereo();
 
-  void Perform() override;
+  void Perform();
 
  private:
   // The default value of '-1' indicates that the registration is based only on
diff --git a/modules/audio_coding/test/TestVADDTX.h b/modules/audio_coding/test/TestVADDTX.h
index e3840f795a..26a695c3e1 100644
--- a/modules/audio_coding/test/TestVADDTX.h
+++ b/modules/audio_coding/test/TestVADDTX.h
@@ -16,7 +16,6 @@
 #include "common_types.h"  // NOLINT(build/include)
 #include "modules/audio_coding/include/audio_coding_module.h"
 #include "modules/audio_coding/include/audio_coding_module_typedefs.h"
-#include "modules/audio_coding/test/ACMTest.h"
 #include "modules/audio_coding/test/Channel.h"
 
 namespace webrtc {
@@ -42,14 +41,12 @@ class ActivityMonitor : public ACMVADCallback {
 // an audio file and check if the occurrence of various packet types follows
 // expectation. TestVadDtx needs its derived class to implement the Perform()
 // to put the test together.
-class TestVadDtx : public ACMTest {
+class TestVadDtx {
  public:
   static const int kOutputFreqHz = 16000;
 
   TestVadDtx();
 
-  virtual void Perform() = 0;
-
  protected:
   void RegisterCodec(CodecInst codec_param);
 
@@ -84,7 +81,7 @@ class TestWebRtcVadDtx final : public TestVadDtx {
  public:
   TestWebRtcVadDtx();
 
-  void Perform() override;
+  void Perform();
 
  private:
   void RunTestCases();
@@ -99,7 +96,7 @@ class TestWebRtcVadDtx final : public TestVadDtx {
 // TestOpusDtx is to verify that the Opus DTX performs as it should.
 class TestOpusDtx final : public TestVadDtx {
  public:
-  void Perform() override;
+  void Perform();
 };
 
 }  // namespace webrtc
diff --git a/modules/audio_coding/test/TwoWayCommunication.h b/modules/audio_coding/test/TwoWayCommunication.h
index c034e9002f..a679732bff 100644
--- a/modules/audio_coding/test/TwoWayCommunication.h
+++ b/modules/audio_coding/test/TwoWayCommunication.h
@@ -16,14 +16,13 @@
 #include "api/audio_codecs/audio_encoder_factory.h"
 #include "api/audio_codecs/audio_format.h"
 #include "modules/audio_coding/include/audio_coding_module.h"
-#include "modules/audio_coding/test/ACMTest.h"
 #include "modules/audio_coding/test/Channel.h"
 #include "modules/audio_coding/test/PCMFile.h"
 #include "modules/audio_coding/test/utility.h"
 
 namespace webrtc {
 
-class TwoWayCommunication : public ACMTest {
+class TwoWayCommunication {
  public:
   TwoWayCommunication();
   ~TwoWayCommunication();
diff --git a/modules/audio_coding/test/iSACTest.h b/modules/audio_coding/test/iSACTest.h
index 22c85b4aa4..0b140b6032 100644
--- a/modules/audio_coding/test/iSACTest.h
+++ b/modules/audio_coding/test/iSACTest.h
@@ -17,7 +17,6 @@
 
 #include "common_types.h"  // NOLINT(build/include)
 #include "modules/audio_coding/include/audio_coding_module.h"
-#include "modules/audio_coding/test/ACMTest.h"
 #include "modules/audio_coding/test/Channel.h"
 #include "modules/audio_coding/test/PCMFile.h"
 #include "modules/audio_coding/test/utility.h"
@@ -36,7 +35,7 @@ struct ACMTestISACConfig {
   bool enforceFrameSize;
 };
 
-class ISACTest : public ACMTest {
+class ISACTest {
  public:
   explicit ISACTest(int testMode);
   ~ISACTest();
diff --git a/modules/audio_coding/test/opus_test.h b/modules/audio_coding/test/opus_test.h
index 1356f27231..019e96b9b2 100644
--- a/modules/audio_coding/test/opus_test.h
+++ b/modules/audio_coding/test/opus_test.h
@@ -17,14 +17,13 @@
 
 #include "modules/audio_coding/acm2/acm_resampler.h"
 #include "modules/audio_coding/codecs/opus/opus_interface.h"
-#include "modules/audio_coding/test/ACMTest.h"
 #include "modules/audio_coding/test/Channel.h"
 #include "modules/audio_coding/test/PCMFile.h"
 #include "modules/audio_coding/test/TestStereo.h"
 
 namespace webrtc {
 
-class OpusTest : public ACMTest {
+class OpusTest {
  public:
   OpusTest();
   ~OpusTest();