删除上个版本的代码

Former-commit-id: 6bda49593a2b4816ad2b4b947fa353c6240b2a06

src/plugin/axios/index.js

@@ -1,10 +0,0 @@
-import Vue from 'vue'
-import axios from 'axios'
-
-axios.interceptors.response.use(res => {
-  return res.data
-}, err => {
-  return Promise.reject(err)
-})
-
-Vue.prototype.$axios = axios

src/plugin/open/index.js

@@ -1,8 +0,0 @@
-export default {
-  install (Vue, options) {
-    // 打开一个url
-    Vue.prototype.$open = (url = 'https://github.com/d2-projects') => {
-      window.open(url)
-    }
-  }
-}