Remove unnecessary fields from VoE SharedData.

webrtc/voice_engine/voe_file_impl.cc

Index: webrtc/voice_engine/voe_file_impl.cc
diff --git a/webrtc/voice_engine/voe_file_impl.cc b/webrtc/voice_engine/voe_file_impl.cc
index 78613b03f5e90241da498d7b4312b20b0348bbc6..bc9245fdf26c6ab477455b972af9a2506691f1ea 100644
--- a/webrtc/voice_engine/voe_file_impl.cc
+++ b/webrtc/voice_engine/voe_file_impl.cc
@@ -396,10 +396,7 @@ int VoEFileImpl::StartRecordingMicrophone(const char* fileNameUTF8,
                  "StartRecordingMicrophone() failed to start recording");
     return -1;
   }
-  if (_shared->audio_device()->Recording()) {
-    return 0;
-  }
-  if (!_shared->ext_recording()) {
+  if (!_shared->audio_device()->Recording()) {
     if (_shared->audio_device()->InitRecording() != 0) {
       WEBRTC_TRACE(kTraceError, kTraceVoice, VoEId(_shared->instance_id(), -1),
                    "StartRecordingMicrophone() failed to initialize recording");
@@ -429,10 +426,7 @@ int VoEFileImpl::StartRecordingMicrophone(OutStream* stream,
                  "StartRecordingMicrophone() failed to start recording");
     return -1;
   }
-  if (_shared->audio_device()->Recording()) {
-    return 0;
-  }
-  if (!_shared->ext_recording()) {
+  if (!_shared->audio_device()->Recording()) {
     if (_shared->audio_device()->InitRecording() != 0) {
       WEBRTC_TRACE(kTraceError, kTraceVoice, VoEId(_shared->instance_id(), -1),
                    "StartRecordingMicrophone() failed to initialize recording");