Мелкие поправки

build/webpack.prod.config.js

@@ -23,11 +23,6 @@ module.exports = merge(baseWpConfig, {
         ]
     },
     plugins: [
-        new webpack.DefinePlugin({
-            "process.env": {
-                "NODE_ENV": JSON.stringify("production")
-            }
-        }),
         new MiniCssExtractPlugin({
             filename: "[name].css"
         })