question

I have set up a device token with "PlayFabClientAPI.RegisterForIOSPushNotification()" when setting up push notifications for iOS. Is there any way to cancel the registered device token? Also, can I see device token information on Playfab? When "registerForRemoteNotifications = false" in AuthorizationRequest setting, I got "Push Registration Successful" but the device token was not removed.

 public async void RegisterForIOSPushNotification()
 {
     AuthorizationOption authorizationOption;
     bool registerForRemoteNotifications;       
     if (registerForRemoteNotificationsFlg == true)
     {
         authorizationOption = AuthorizationOption.Alert | AuthorizationOption.Badge | AuthorizationOption.Sound;
         registerForRemoteNotifications = true;
     }
     else
     {
         authorizationOption = 0;
         registerForRemoteNotifications = false;
     }

     using (var req = new AuthorizationRequest(authorizationOption, registerForRemoteNotifications ))
     {
         await UniTask.WaitUntil(() => !req.IsFinished);
         if (req.Error != null)
         {
             Debug.LogError("req.ERROR:" + req.Error.ToString());
         }
         await UniTask.WaitUntil(() => req.DeviceToken != null);
         if (req.DeviceToken != null)
         {
             var request = new RegisterForIOSPushNotificationRequest
             {
                 DeviceToken = req.DeviceToken
             };
             PlayFabClientAPI.RegisterForIOSPushNotification(request,
             result =>
             {
                 Debug.Log("Push Registration Successful");
             },
             error =>
             {
                 Debug.Log(error.GenerateErrorReport());
             });
         }
         else
         {
             Debug.Log("Push Token was null!");
         }
     }

 }