You are by no means required to keep this directory or the 
<a href="https://www.npmjs.com/package/fp-stylus" target="_blank">fp-stylus</a> 
extension. To remove Stylus CSS preprocessing from this project:

* Delete this directory.
* Navigate to the root directory of this project.
* `cd extend`
* `npm rm --save-dev fp-stylus`
* Delete the `stylus` tasks from `contrib.js`.
