Revert of Enable -Winconsistent-missing-override flag.

webrtc/api/rtpsender.h

Index: webrtc/api/rtpsender.h
diff --git a/webrtc/api/rtpsender.h b/webrtc/api/rtpsender.h
index 86de7658c9818b5852fc6423938fde5a731fc9cd..fe61cbde760a4dc3f87d3181046510d70255abb3 100644
--- a/webrtc/api/rtpsender.h
+++ b/webrtc/api/rtpsender.h
@@ -98,8 +98,8 @@
 
   void Stop() override;
 
-  RtpParameters GetParameters() const override;
-  bool SetParameters(const RtpParameters& parameters) override;
+  RtpParameters GetParameters() const;
+  bool SetParameters(const RtpParameters& parameters);
 
  private:
   // TODO(nisse): Since SSRC == 0 is technically valid, figure out
@@ -164,8 +164,8 @@
 
   void Stop() override;
 
-  RtpParameters GetParameters() const override;
-  bool SetParameters(const RtpParameters& parameters) override;
+  RtpParameters GetParameters() const;
+  bool SetParameters(const RtpParameters& parameters);
 
  private:
   bool can_send_track() const { return track_ && ssrc_; }