refactor: use the Fetch API to instead of Axios (#466)

src/utils/cancelToken.ts

@@ -1,25 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You 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 axios from "axios";
-const CancelToken = axios.CancelToken;
-
-export const cancelToken = (): any =>
-  new CancelToken(function executor(c) {
-    const w = window as any;
-    (w.axiosCancel || []).push(c);
-  });