feat(metadata): Drops reading from room data form.

modules/xmpp/ChatRoom.js

@@ -1,4 +1,3 @@
-import { safeJsonParse } from '@jitsi/js-utils/json';
 import { getLogger } from '@jitsi/logger';
 import $ from 'jquery';
 import { isEqual } from 'lodash-es';
@@ -423,18 +422,6 @@ export default class ChatRoom extends Listenable {
                 this.eventEmitter.emit(XMPPEvents.MUC_VISITORS_SUPPORTED_CHANGED, visitorsSupported);
             }
 
-            const roomMetadataEl
-                = $(result).find('>query>x[type="result"]>field[var="muc#roominfo_jitsimetadata"]>value');
-            const roomMetadataText = roomMetadataEl?.text();
-
-            if (roomMetadataText) {
-                try {
-                    this.roomMetadata._handleMessages(safeJsonParse(roomMetadataText));
-                } catch (e) {
-                    logger.warn('Failed to set room metadata', e);
-                }
-            }
-
             this.initialDiscoRoomInfoReceived = true;
             this.eventEmitter.emit(XMPPEvents.ROOM_DISCO_INFO_UPDATED);
         }, error => {