Move audio renderer destruction back off the main thread now that we're using atexit(SDL_Quit)

app/streaming/session.cpp

@@ -288,8 +288,7 @@ Session::Session(NvComputer* computer, NvApp& app, StreamingPreferences *prefere
       m_DisplayOriginY(0),
       m_PendingWindowedTransition(false),
       m_OpusDecoder(nullptr),
-      m_AudioRenderer(nullptr),
-      m_AudioRendererLock(0)
+      m_AudioRenderer(nullptr)
 {
 }
 
@@ -1143,9 +1142,6 @@ DispatchDeferredCleanup:
     m_VideoDecoder = nullptr;
     SDL_AtomicUnlock(&m_DecoderLock);
 
-    // Destroy the audio renderer which must also be done on the main thread
-    cleanupAudioRendererOnMainThread();
-
     SDL_DestroyWindow(m_Window);
     if (iconSurface != nullptr) {
         SDL_FreeSurface(iconSurface);