Sorry @adam-lynch, here is the code.
The idea is that if `nobuiltins` option is defined it gets the builtins modules (from browserify mod) and then filter them removing those modules that have been defined in nobuiltins options.

These are the builtins modules: https://github.com/substack/node-browserify/blob/master/lib/builtins.js
So if I don't want `events` module simply I can do:

```js
.pipe(browserify({
  nobuiltins: 'events'
}))
```