Removing some unnecessary string manipulation code from VoEBase::GetVersion().

webrtc/voice_engine/voice_engine_impl.cc

Index: webrtc/voice_engine/voice_engine_impl.cc
diff --git a/webrtc/voice_engine/voice_engine_impl.cc b/webrtc/voice_engine/voice_engine_impl.cc
index 8df05cc012b10d956dca84a814d599695ab7f1ae..f856789683a957f3fa0e5c5f21d44f5ae5f78865 100644
--- a/webrtc/voice_engine/voice_engine_impl.cc
+++ b/webrtc/voice_engine/voice_engine_impl.cc
@@ -165,4 +165,12 @@ int VoiceEngine::SetAndroidObjects(void* javaVM, void* context) {
 }
 #endif
 
+std::string VoiceEngine::GetVersionString() {
+  std::string version = "VoiceEngine 4.1.0";
+#ifdef WEBRTC_EXTERNAL_TRANSPORT
+  version += " (External transport build)";
+#endif
+  return version;
+}
+
 }  // namespace webrtc