Prevent creation of .LICENSE.txt files associates with mhchemparser

Author: dpvc

components/webpack.common.js

@@ -158,6 +158,7 @@ const PACKAGE = function (name, js, libs, dir, dist) {
     optimization: {
       minimize: true,
       minimizer: [new TerserPlugin({
+        extractComments: false,
         terserOptions: {
           output: {
             ascii_only: true