winecoreaudio: Use mmdevapi's set_stream_volumes.

dlls/winecoreaudio.drv/mmdevdrv.c

@@ -79,6 +79,8 @@ extern HRESULT stream_release(stream_handle stream, HANDLE timer_thread);
 
 extern WCHAR *get_application_name(void);
 
+extern void set_stream_volumes(struct audio_client *This);
+
 void DECLSPEC_HIDDEN sessions_lock(void)
 {
     EnterCriticalSection(&g_sessions_lock);
@@ -198,18 +200,6 @@ static void get_device_guid(EDataFlow flow, const char *dev, GUID *guid)
         RegCloseKey(key);
 }
 
-static void set_stream_volumes(ACImpl *This)
-{
-    struct set_volumes_params params;
-
-    params.stream = This->stream;
-    params.master_volume = This->session->mute ? 0.0f : This->session->master_vol;
-    params.volumes = This->vols;
-    params.session_volumes = This->session->channel_vols;
-
-    UNIX_CALL(set_volumes, &params);
-}
-
 HRESULT WINAPI AUDDRV_GetEndpointIDs(EDataFlow flow, WCHAR ***ids_out,
         GUID **guids_out, UINT *num, UINT *def_index)
 {