Remove old method for creating PC test fixture

Bug: webrtc:11743
Change-Id: Ia57681c8ddf1b352be275fa22198c4d671f90efe
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/178604
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31624}

api/test/create_peerconnection_quality_test_fixture.cc

diff --git a/api/test/create_peerconnection_quality_test_fixture.cc b/api/test/create_peerconnection_quality_test_fixture.cc
index 4bf127d..8c9f97c 100644
--- a/api/test/create_peerconnection_quality_test_fixture.cc
+++ b/api/test/create_peerconnection_quality_test_fixture.cc
@@ -22,16 +22,6 @@
 std::unique_ptr<PeerConnectionE2EQualityTestFixture>
 CreatePeerConnectionE2EQualityTestFixture(
     std::string test_case_name,
-    std::unique_ptr<AudioQualityAnalyzerInterface> audio_quality_analyzer,
-    std::unique_ptr<VideoQualityAnalyzerInterface> video_quality_analyzer) {
-  return std::make_unique<PeerConnectionE2EQualityTest>(
-      std::move(test_case_name), std::move(audio_quality_analyzer),
-      std::move(video_quality_analyzer));
-}
-
-std::unique_ptr<PeerConnectionE2EQualityTestFixture>
-CreatePeerConnectionE2EQualityTestFixture(
-    std::string test_case_name,
     TimeController& /*time_controller*/,
     std::unique_ptr<AudioQualityAnalyzerInterface> audio_quality_analyzer,
     std::unique_ptr<VideoQualityAnalyzerInterface> video_quality_analyzer) {

api/test/create_peerconnection_quality_test_fixture.h

diff --git a/api/test/create_peerconnection_quality_test_fixture.h b/api/test/create_peerconnection_quality_test_fixture.h
index dc0e42d..95b9ced 100644
--- a/api/test/create_peerconnection_quality_test_fixture.h
+++ b/api/test/create_peerconnection_quality_test_fixture.h
@@ -27,17 +27,6 @@
 // During the test Alice will be caller and Bob will answer the call.
 // |test_case_name| is a name of test case, that will be used for all metrics
 // reporting.
-// Returns a non-null PeerConnectionE2EQualityTestFixture instance.
-std::unique_ptr<PeerConnectionE2EQualityTestFixture>
-CreatePeerConnectionE2EQualityTestFixture(
-    std::string test_case_name,
-    std::unique_ptr<AudioQualityAnalyzerInterface> audio_quality_analyzer,
-    std::unique_ptr<VideoQualityAnalyzerInterface> video_quality_analyzer);
-
-// Create test fixture to establish test call between Alice and Bob.
-// During the test Alice will be caller and Bob will answer the call.
-// |test_case_name| is a name of test case, that will be used for all metrics
-// reporting.
 // |time_controller| is used to manage all rtc::Thread's and TaskQueue
 // instances. Instance of |time_controller| have to outlive created fixture.
 // Returns a non-null PeerConnectionE2EQualityTestFixture instance.