title: Removing FB apps from user settings ideally should restrict my Access tokens but it DOESNOT
body: <p>My product users are using the Facebbok apps for authorisation and generating Keys and tokens.
  When I remove the app, my users are still able to connect and fetch the posts from facebook. How is that..? The old tokens should nto work as I assumed , but they are still working.. Does it takes time to reflect.?</p>
  
  <p>Please help me..:)</p>