Update webpack.base.conf.js

build/webpack.base.conf.js

@@ -60,16 +60,6 @@ module.exports = {
         loader: 'babel-loader?cacheDirectory',
         include: [resolve('src'), resolve('test')]
       },
-      {
-        test: /\.js$/,
-        use: [{
-          loader: 'babel-loader',
-          options: {
-             presets: ['es2015']
-          }
-        }],
-        exclude: /node_modules/
-      },
       {
         test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
         loader: 'url-loader',