webpack remove console.log
https://stackoverflow.com/questions/41040266/remove-console-logs-with-webpack-uglify
https://v4.webpack.js.org/plugins/uglifyjs-webpack-plugin/#uglifyoptions
https://v4.webpack.js.org/plugins/compression-webpack-plugin/
https://github.com/mishoo/UglifyJS#compress-options
https://gist.github.com/rupeshtiwari/4bc44953d00670a3980b5e13113d159d
https://github.com/webpack-contrib/terser-webpack-plugin/issues/57#issuecomment-453986632
drop_console
xgqfrms