Remove the unused exports with help of ts-prune

src/room/useRoomAvatar.ts

@@ -1,26 +0,0 @@
-/*
-Copyright 2022 New Vector Ltd
-
-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 { useCallback } from "react";
-import { Room } from "matrix-js-sdk/src/models/room";
-
-import { useRoomState } from "./useRoomState";
-
-export const useRoomAvatar = (room: Room) =>
-  useRoomState(
-    room,
-    useCallback(() => room.getMxcAvatarUrl(), [room])
-  );