Revert of Add content type information to encoded images and corresponding rtp extension header

webrtc/video/video_send_stream_tests.cc

Index: webrtc/video/video_send_stream_tests.cc
diff --git a/webrtc/video/video_send_stream_tests.cc b/webrtc/video/video_send_stream_tests.cc
index eb4bd2573e500554e9dcad7412708f9c52a17dc8..5e5a61389a932bb5537e336160ed862c430e88a4 100644
--- a/webrtc/video/video_send_stream_tests.cc
+++ b/webrtc/video/video_send_stream_tests.cc
@@ -281,43 +281,6 @@
     void OnFrameGeneratorCapturerCreated(
         test::FrameGeneratorCapturer* frame_generator_capturer) override {
       frame_generator_capturer->SetFakeRotation(kVideoRotation_90);
-    }
-
-    void PerformTest() override {
-      EXPECT_TRUE(Wait()) << "Timed out while waiting for single RTP packet.";
-    }
-  } test;
-
-  RunBaseTest(&test);
-}
-
-TEST_F(VideoSendStreamTest, SupportsVideoContentType) {
-  class VideoRotationObserver : public test::SendTest {
-   public:
-    VideoRotationObserver() : SendTest(kDefaultTimeoutMs) {
-      EXPECT_TRUE(parser_->RegisterRtpHeaderExtension(
-          kRtpExtensionVideoContentType, test::kVideoContentTypeExtensionId));
-    }
-
-    Action OnSendRtp(const uint8_t* packet, size_t length) override {
-      RTPHeader header;
-      EXPECT_TRUE(parser_->Parse(packet, length, &header));
-      EXPECT_TRUE(header.extension.hasVideoContentType);
-      EXPECT_EQ(VideoContentType::SCREENSHARE,
-                header.extension.videoContentType);
-      observation_complete_.Set();
-      return SEND_PACKET;
-    }
-
-    void ModifyVideoConfigs(
-        VideoSendStream::Config* send_config,
-        std::vector<VideoReceiveStream::Config>* receive_configs,
-        VideoEncoderConfig* encoder_config) override {
-      send_config->rtp.extensions.clear();
-      send_config->rtp.extensions.push_back(
-          RtpExtension(RtpExtension::kVideoContentTypeUri,
-                       test::kVideoContentTypeExtensionId));
-      encoder_config->content_type = VideoEncoderConfig::ContentType::kScreen;
     }
 
     void PerformTest() override {