deleted old code

lib/providers/workout_provider.dart

@@ -39,8 +39,6 @@ class WorkoutProvider extends ChangeNotifier {
       _workoutPhaseSettings[currentPhase]!['source'];
 
   void nextPhase() {
-    _onCompleteSubscription.cancel();
-    _audioPlayer.stop();
     if (_workoutPhaseIndex < _workoutPhases.length - 1) {
       _workoutPhaseIndex += 1;
       audioProvider.playSourceAfterBeep(currentPhaseSource);