Change to use pulseaudio old tunnelin module

There seems to be issues with pulseaudio module-tunnel -new modules
The moules cause desynch in audio that is not recoverable. The bugs
of that are some 10 years old and seem not to get fixed.

modules/microvm/virtualization/microvm/common/ghaf-audio.nix

@@ -37,10 +37,9 @@ in
     hardware.pulseaudio = lib.mkIf cfg.useTunneling {
       enable = true;
       extraConfig = ''
-        load-module module-tunnel-sink-new sink_name=${cfg.name}.speaker server=${address} reconnect_interval_ms=${toString reconnectMs}
-        load-module module-tunnel-source-new source_name=${cfg.name}.mic server=${address} reconnect_interval_ms=${toString reconnectMs}
+        load-module module-tunnel-sink sink_name=${cfg.name}.speaker server=${address} reconnect_interval_ms=${toString reconnectMs}
+        load-module module-tunnel-source source_name=${cfg.name}.mic server=${address} reconnect_interval_ms=${toString reconnectMs}
       '';
-      package = pkgs.pulseaudio-ghaf;
     };
 
     environment = lib.mkIf (!cfg.useTunneling) {

overlays/custom-packages/default.nix

@@ -21,7 +21,6 @@
   open-normal-extension = final.callPackage ../../packages/open-normal-extension { };
   gtklock = import ./gtklock { inherit prev; };
   hardware-scan = final.callPackage ../../packages/hardware-scan { };
-  pulseaudio-ghaf = import ./pulseaudio { inherit prev; };
   globalprotect-openconnect =
     final.libsForQt5.callPackage ../../packages/globalprotect-openconnect
       { };