remove deprecated plugins from https://webpack.js.org/plugins/

__Feature to document__

Need to remove:

- i18n-webpack-plugin
- extract-text-webpack-plugin
- babel-minify-webpack-plugin
- uglifyjs-webpack-plugin
- zopfli-webpack-plugin


__Author(s)__

Any

__Additional information__

No

[ ] I am willing to work on this issue and submit a pull request.