Reduce LS_INFO spam from voice_engine/.

talk/media/webrtc/webrtcvoiceengine.h

Index: talk/media/webrtc/webrtcvoiceengine.h
diff --git a/talk/media/webrtc/webrtcvoiceengine.h b/talk/media/webrtc/webrtcvoiceengine.h
index 655d3c996f10b2bfb83b86729b07acaba45d7117..158984ec5f96da027c8e18cae383df39229d5baa 100644
--- a/talk/media/webrtc/webrtcvoiceengine.h
+++ b/talk/media/webrtc/webrtcvoiceengine.h
@@ -138,9 +138,6 @@ class WebRtcVoiceEngine
   // Starts AEC dump using existing file.
   bool StartAecDump(rtc::PlatformFile file);
 
-  // Check whether the supplied trace should be ignored.
-  bool ShouldIgnoreTrace(const std::string& trace);
-
   // Create a VoiceEngine Channel.
   int CreateMediaVoiceChannel();