remove build.scopeHoisting option

ModuleConcatenationPlugin enabled in production. Configurable with  optimization.concatenateModules

lib/builder/webpack/client.config.js

@@ -148,11 +148,6 @@ module.exports = function webpackClientConfig() {
   // Production specific config
   // --------------------------------------
   if (!this.options.dev) {
-    // Scope Hoisting
-    if (this.options.build.scopeHoisting === true) {
-      config.plugins.push(new webpack.optimize.ModuleConcatenationPlugin())
-    }
-
     // Chunks size limit
     // https://webpack.js.org/plugins/aggressive-splitting-plugin/
     if (this.options.build.maxChunkSize) {

lib/common/options.js

@@ -188,7 +188,6 @@ Options.defaults = {
     analyze: false,
     profile: process.argv.includes('--profile'),
     dll: false,
-    scopeHoisting: false,
     maxChunkSize: false,
     extractCSS: false,
     cssSourceMap: undefined,