title: how to delete a room in socket.io
body: <p>I want to statically remove all users from a room, effectively deleting that room. The idea is that another room with the same name may be created again in the future, but I want it created empty (without the listeners from the previous room).</p>
  
  <p>I'm not interested in managing the room status myself but rather curious as if I can leverage socket.io internals to do this. Is this possible? (see also <a href="https://stackoverflow.com/questions/7228730/how-to-correctly-unsubscribe-from-a-socket-io-room-and-destroy-it">this question</a>)</p>