Removing unused SpeechRecognitionManager::GetAudioInputDeviceModel()

content/public/test/fake_speech_recognition_manager.cc

Index: content/public/test/fake_speech_recognition_manager.cc
diff --git a/content/public/test/fake_speech_recognition_manager.cc b/content/public/test/fake_speech_recognition_manager.cc
index d1a715512f3c7d8ba32518a5a4b2df8399d1f639..e5e898a6ba7e0beca7679b1a36038f447f434797 100644
--- a/content/public/test/fake_speech_recognition_manager.cc
+++ b/content/public/test/fake_speech_recognition_manager.cc
@@ -128,10 +128,6 @@ void FakeSpeechRecognitionManager::AbortAllSessionsForRenderView(
 
 bool FakeSpeechRecognitionManager::HasAudioInputDevices() { return true; }
 
-base::string16 FakeSpeechRecognitionManager::GetAudioInputDeviceModel() {
-  return base::string16();
-}
-
 int FakeSpeechRecognitionManager::GetSession(int render_process_id,
                                              int render_view_id,
                                              int request_id) const {