Remove virtual rooms (#29635)

* Remove virtual rooms from the timelinePanel and RoomView

* Remove VoipUserMapper

* Remove some unneeded imports

* Remove tovirtual slash command test

* Remove getSupportsVirtualRooms and virtualLookup

* lint

* Remove PROTOCOL_SIP_NATIVE

* Remove native/virtual looks fields and fix tests

* Remove unused lookup fields

src/components/structures/RoomView.tsx

@@ -120,8 +120,6 @@ import { isVideoRoom } from "../../utils/video-rooms";
 import { SDKContext } from "../../contexts/SDKContext";
 import { RoomSearchView } from "./RoomSearchView";
 import eventSearch, { type SearchInfo, SearchScope } from "../../Searching";
-import VoipUserMapper from "../../VoipUserMapper";
-import { isCallEvent } from "./LegacyCallEventGrouper";
 import { WidgetType } from "../../widgets/WidgetType";
 import WidgetUtils from "../../utils/WidgetUtils";
 import { shouldEncryptRoomWithSingle3rdPartyInvite } from "../../utils/room/shouldEncryptRoomWithSingle3rdPartyInvite";
@@ -165,7 +163,6 @@ export { MainSplitContentType };
 
 export interface IRoomState {
     room?: Room;
-    virtualRoom?: Room;
     roomId?: string;
     roomAlias?: string;
     roomLoading: boolean;
@@ -1344,12 +1341,6 @@ export class RoomView extends React.Component<IRoomProps, IRoomState> {
         return this.messagePanel.canResetTimeline();
     };
 
-    private loadVirtualRoom = async (room?: Room): Promise<void> => {
-        const virtualRoom = room?.roomId && (await VoipUserMapper.sharedInstance().getVirtualRoomForRoom(room?.roomId));
-
-        this.setState({ virtualRoom: virtualRoom || undefined });
-    };
-
     // called when state.room is first initialised (either at initial load,
     // after a successful peek, or after we join the room).
     private onRoomLoaded = (room: Room): void => {
@@ -1362,7 +1353,6 @@ export class RoomView extends React.Component<IRoomProps, IRoomState> {
         this.calculateRecommendedVersion(room);
         this.updatePermissions(room);
         this.checkWidgets(room);
-        this.loadVirtualRoom(room);
         this.updateRoomEncrypted(room);
 
         if (
@@ -2444,8 +2434,6 @@ export class RoomView extends React.Component<IRoomProps, IRoomState> {
                 <TimelinePanel
                     ref={this.gatherTimelinePanelRef}
                     timelineSet={this.state.room.getUnfilteredTimelineSet()}
-                    overlayTimelineSet={this.state.virtualRoom?.getUnfilteredTimelineSet()}
-                    overlayTimelineSetFilter={isCallEvent}
                     showReadReceipts={this.state.showReadReceipts}
                     manageReadReceipts={!this.state.isPeeking}
                     sendReadReceiptOnLoad={!this.state.wasContextSwitch}