prosody: remove muc_meeting_id from lobby

* prosody: remove muc_meeting_id from lobby

prosody/rootfs/defaults/conf.d/jitsi-meet.cfg.lua

@@ -413,7 +413,6 @@ Component "lobby.{{ $XMPP_DOMAIN }}" "muc"
     muc_room_locking = false
     muc_room_default_public_jids = true
     modules_enabled = {
-        "muc_meeting_id";
         {{ if $ENABLE_RATE_LIMITS -}}
         "muc_rate_limit";
         {{ end -}}