title: Pubnub - How to UnPublish from a channel
body: <p>I tried implementing Pubnub - <a href="https://www.pubnub.com/developers/eon/map/flight/" rel="nofollow">"Realtime Flight Tracking Map" example</a> </p>
  
  <p>Can anyone please tell me how to unpublish from a channel and then the corresponding marker should disappear from map.
  For example in the demo shown in the link above if a flight "66e234a" goes offline then is marker should not show in map.</p>
  
  <p>Please help me implement this feature..</p>