Fix clear captions calls

bigbluebutton-html5/imports/api/meetings/server/modifiers/clearMeetings.js

@@ -14,7 +14,7 @@ import clearPresentations from '/imports/api/presentations/server/modifiers/clea
 
 export default function clearMeetings() {
   return Meetings.remove({}, (err) => {
-    clearCaptionsCollection();
+    clearCaptions();
     clearChats();
     clearCursor();
     clearPresentations();

bigbluebutton-html5/imports/api/meetings/server/modifiers/removeMeeting.js

@@ -24,7 +24,7 @@ export default function removeMeeting(meetingId) {
     }
 
     if (numChanged) {
-      clearCaptionsCollection(meetingId);
+      clearCaptions(meetingId);
       clearChats(meetingId);
       clearCursor(meetingId);
       clearPresentations(meetingId);