Revert of Enable -Winconsistent-missing-override flag.

webrtc/test/rtp_file_reader.cc

Index: webrtc/test/rtp_file_reader.cc
diff --git a/webrtc/test/rtp_file_reader.cc b/webrtc/test/rtp_file_reader.cc
index 476767ad577857966f7e87fc852979dc58ba1dfc..3687ef7b5b5a28f0bf2445ba123110d9af14d1b0 100644
--- a/webrtc/test/rtp_file_reader.cc
+++ b/webrtc/test/rtp_file_reader.cc
@@ -131,7 +131,7 @@
   }
 
   bool Init(const std::string& filename,
-            const std::set<uint32_t>& ssrc_filter) override {
+            const std::set<uint32_t>& ssrc_filter) {
     file_ = fopen(filename.c_str(), "rb");
     if (file_ == NULL) {
       printf("ERROR: Can't open file: %s\n", filename.c_str());