Fixed a bug with Polls deletion from all meetings

Which happened when we published a poll, cleared a collection, and then received a poll_stopped_message

bigbluebutton-html5/imports/api/polls/server/modifiers/clearPollCollection.js

@@ -6,10 +6,7 @@ export function clearPollCollection() {
   const pollId = arguments[1];
 
   //TODO make it so you can delete the polls based only on meetingId
-  if (meetingId != null && pollId != null && Polls.findOne({
-    meetingId: meetingId,
-    poll: { id: pollId },
-  }) != null) {
+  if (meetingId != null && pollId != null) {
     return Polls.remove({
       meetingId: meetingId,
       'poll.id': pollId,