title: Remove delivered notification from tray without opening app
body: <p>My app is Voip application written in ReactNative (Android and IOS)
  The calling process is custom made by sending to user push notifications every x seconds.</p>
  
  <p><em>Delivering the notification with FCM.</em></p>
  
  <p>On android, If I deliver multiple notifications with the same ID, it will deliver multiple times, but display only once on <strong>notification try</strong>.</p>
  
  <p>On IOS I would like to accomplish the same result.</p>
  
  <p>Is there a way or to deliver a few notifications and make them display once at <strong>Notification tray</strong>?</p>
  
  <p>Or </p>
  
  <p><strong>How remove notifications from the tray without opening the app?</strong></p>
  
  <p><em>I can't use CallKit since I'm using custom UI for out and in calls.</em></p>
  
  <p>Thanks!</p>