Remove hosting link provider from Element (#10270)

* Remove hosting link provider from Element

* fix whitespace

src/stores/HostSignupStore.ts

@@ -1,49 +0,0 @@
-/*
-Copyright 2021 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 defaultDispatcher from "../dispatcher/dispatcher";
-import { AsyncStore } from "./AsyncStore";
-import { ActionPayload } from "../dispatcher/payloads";
-
-interface IState {
-    hostSignupActive: boolean;
-}
-
-export class HostSignupStore extends AsyncStore<IState> {
-    private static internalInstance = new HostSignupStore();
-
-    private constructor() {
-        super(defaultDispatcher, { hostSignupActive: false });
-    }
-
-    public static get instance(): HostSignupStore {
-        return HostSignupStore.internalInstance;
-    }
-
-    public get isHostSignupActive(): boolean {
-        return this.state.hostSignupActive;
-    }
-
-    public async setHostSignupActive(status: boolean): Promise<void> {
-        return this.updateState({
-            hostSignupActive: status,
-        });
-    }
-
-    protected onDispatch(payload: ActionPayload): void {
-        // Nothing to do
-    }
-}