refactor: remove vendor

lib/builder/webpack/client.config.js

@@ -82,8 +82,7 @@ module.exports = function webpackClientConfig() {
   // Optimization
   config.optimization = {
     splitChunks: {
-      chunks: 'all',
-      filename: this.getFileName('vendor')
+      chunks: 'all'
     }
   }
 

lib/common/options.js

@@ -206,7 +206,6 @@ Options.defaults = {
     filenames: {
       css: '[name].[contenthash].css',
       manifest: 'manifest.[hash].js',
-      vendor: 'vendor.[chunkhash].js',
       app: '[name].[chunkhash].js',
       chunk: '[name].[chunkhash].js'
     },