message: Fix crashes in addRemoteCandidate when subscriber is not removed from publisher
diff: @@ -223,6 +223,7 @@ exports.ErizoJSController = function (threadPool, ioThreadPool) {
  let subscriber = publisher.getSubscriber(subscriberKey);
  log.info('message: Removing subscriber, id: ' + subscriberKey);
  closeNode(subscriber);
  + publisher.removeSubscriber(subscriberKey);
  }
  publisher.removeExternalOutputs().then(function() {
  closeNode(publisher);
  