Delete the remainder of groups (#9357)

* Delete the remainder of groups

Fixes https://github.com/vector-im/element-web/issues/22770
Continues https://github.com/matrix-org/matrix-react-sdk/pull/8027

* Don't need the strings either

src/components/structures/LegacyGroupView.tsx

@@ -1,51 +0,0 @@
-/*
-Copyright 2020 The Matrix.org Foundation C.I.C.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-import * as React from "react";
-
-import AutoHideScrollbar from './AutoHideScrollbar';
-import { _t } from "../../languageHandler";
-import SdkConfig, { DEFAULTS } from "../../SdkConfig";
-
-interface IProps {
-    groupId: string;
-}
-
-const LegacyGroupView: React.FC<IProps> = ({ groupId }) => {
-    // XXX: Stealing classes from the HomePage component for CSS simplicity.
-    // XXX: Inline CSS because this is all temporary
-    const learnMoreUrl = SdkConfig.get().spaces_learn_more_url ?? DEFAULTS.spaces_learn_more_url;
-    return <AutoHideScrollbar className="mx_HomePage mx_HomePage_default">
-        <div className="mx_HomePage_default_wrapper">
-            <h1 style={{ fontSize: '24px' }}>{ _t("That link is no longer supported") }</h1>
-            <p>
-                { _t(
-                    "You're trying to access a community link (%(groupId)s).<br/>" +
-                    "Communities are no longer supported and have been replaced by spaces.<br2/>" +
-                    "<a>Learn more about spaces here.</a>",
-                    { groupId },
-                    {
-                        br: () => <br />,
-                        br2: () => <br />,
-                        a: (sub) => <a href={learnMoreUrl} rel="noreferrer noopener" target="_blank">{ sub }</a>,
-                    },
-                ) }
-            </p>
-        </div>
-    </AutoHideScrollbar>;
-};
-
-export default LegacyGroupView;

src/components/structures/LoggedInView.tsx

@@ -67,7 +67,6 @@ import RightPanelStore from '../../stores/right-panel/RightPanelStore';
 import { TimelineRenderingType } from "../../contexts/RoomContext";
 import { KeyBindingAction } from "../../accessibility/KeyboardShortcuts";
 import { SwitchSpacePayload } from "../../dispatcher/payloads/SwitchSpacePayload";
-import LegacyGroupView from "./LegacyGroupView";
 import { IConfigOptions } from "../../IConfigOptions";
 import LeftPanelLiveShareWarning from '../views/beacon/LeftPanelLiveShareWarning';
 import { UserOnboardingPage } from '../views/user-onboarding/UserOnboardingPage';
@@ -103,8 +102,6 @@ interface IProps {
     justRegistered?: boolean;
     roomJustCreatedOpts?: IOpts;
     forceTimeline?: boolean; // see props on MatrixChat
-
-    currentGroupId?: string;
 }
 
 interface IState {
@@ -641,10 +638,6 @@ class LoggedInView extends React.Component<IProps, IState> {
             case PageTypes.UserView:
                 pageElement = <UserView userId={this.props.currentUserId} resizeNotifier={this.props.resizeNotifier} />;
                 break;
-
-            case PageTypes.LegacyGroupView:
-                pageElement = <LegacyGroupView groupId={this.props.currentGroupId} />;
-                break;
         }
 
         const wrapperClasses = classNames({

src/components/structures/MatrixChat.tsx

@@ -188,8 +188,6 @@ interface IState {
     currentRoomId?: string;
     // If we're trying to just view a user ID (i.e. /user URL), this is it
     currentUserId?: string;
-    // Group ID for legacy "communities don't exist" page
-    currentGroupId?: string;
     // this is persisted as mx_lhs_size, loaded in LoggedInView
     collapseLhs: boolean;
     // Parameters used in the registration dance with the IS
@@ -679,9 +677,6 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
                 }
                 break;
             }
-            case 'view_legacy_group':
-                this.viewLegacyGroup(payload.groupId);
-                break;
             case Action.ViewUserSettings: {
                 const tabPayload = payload as OpenToTabPayload;
                 Modal.createDialog(UserSettingsDialog,
@@ -1023,16 +1018,6 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
         });
     }
 
-    private viewLegacyGroup(groupId: string) {
-        this.setStateForNewView({
-            view: Views.LOGGED_IN,
-            currentRoomId: null,
-            currentGroupId: groupId,
-        });
-        this.notifyNewScreen('group/' + groupId);
-        this.setPage(PageType.LegacyGroupView);
-    }
-
     private async createRoom(defaultPublic = false, defaultName?: string, type?: RoomType) {
         const modal = Modal.createDialog(CreateRoomDialog, {
             type,
@@ -1803,12 +1788,6 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
                 userId: userId,
                 subAction: params.action,
             });
-        } else if (screen.indexOf('group/') === 0) {
-            const groupId = screen.substring(6);
-            dis.dispatch({
-                action: 'view_legacy_group',
-                groupId: groupId,
-            });
         } else {
             logger.info("Ignoring showScreen for '%s'", screen);
         }