去除冗余引入

src/main.js

@@ -19,10 +19,6 @@ import less from 'less'
 
 import Blob from './excel/Blob'
 import Export2Excel from './excel/Export2Excel.js'
-//引入elementUI
-import ElementUI from 'element-ui'
-import 'element-ui/lib/theme-chalk/index.css'
-Vue.use(ElementUI)
 
 //less的css编码
 Vue.use(less)