Remove deprecated PeerConnectionObserver::OnStateChange and OnIceComplete

talk/app/webrtc/peerconnection_unittest.cc

Index: talk/app/webrtc/peerconnection_unittest.cc
diff --git a/talk/app/webrtc/peerconnection_unittest.cc b/talk/app/webrtc/peerconnection_unittest.cc
index 90615918e53969c613feade7ff7ad704d891a8e2..cad13e24412c881cb1b3f256996acbae8d697e08 100644
--- a/talk/app/webrtc/peerconnection_unittest.cc
+++ b/talk/app/webrtc/peerconnection_unittest.cc
@@ -386,8 +386,6 @@ class PeerConnectionTestClient : public webrtc::PeerConnectionObserver,
     return true;
   }
 
-  void OnIceComplete() override { LOG(INFO) << id_ << "OnIceComplete"; }
-
   void OnDataChannel(DataChannelInterface* data_channel) override {
     LOG(INFO) << id_ << "OnDataChannel";
     data_channel_ = data_channel;