Webpack: Simplify webpack.prod.js

webpack.prod.js

@@ -24,16 +24,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
 module.exports = merge(common, {
   mode: 'production',
   devtool: 'source-map',
-  performance: {
-    hints: 'warning'
-  },
-  output: {
-    pathinfo: false
-  },
   plugins: [
-    new webpack.DefinePlugin({'process.env.NODE_ENV': JSON.stringify('production')}),
-    new webpack.optimize.ModuleConcatenationPlugin(),
-    new webpack.NoEmitOnErrorsPlugin(),
     new webpack.BannerPlugin({banner: banner, entryOnly: true}),
   ],
 });