old_contents: const path = require('path');
  
  module.exports = {
      mode: 'production',
      output: {
          filename: 'index.js',
          libraryTarget: 'umd',
          library: 'ReactDualListBox',
      },
      resolve: {
          alias: {
              'react-dual-listbox': path.resolve(__dirname, 'src/js/DualListBox'),
          },
      },
      module: {
          rules: [
              {
                  test: /\.js?$/,
                  exclude: /(node_modules|bower_components|vender_modules)/,
                  loader: 'babel-loader',
              },
          ],
      },
  };
  
new_contents: const path = require('path');
  
  module.exports = {
      mode: 'production',
      output: {
          filename: 'index.js',
          libraryTarget: 'umd',
          library: 'ReactDualListBox',
      },
      resolve: {
          alias: {
              'react-dual-listbox': path.resolve(__dirname, 'src/js/DualListBox'),
          },
      },
      module: {
          rules: [
              {
                  test: /\.js?$/,
                  exclude: /(node_modules)/,
                  loader: 'babel-loader',
              },
          ],
      },
  };
  
subject: Remove unnecessary Webpack module testing