Delete CustomPress post type with code

Hi,

I'm working on a multisite install that will allow sites to select which Custom Post Types they want to use. I'm using the import code ($CustomPress_Core->import) to install the CPTs when they're requested, but is there a parallel way to remove unwanted CPTs? (e.g., $CustomPress_Core->delete($post_type_slug) or something)

Thus far, the only solution I've found is going to the CustomPress Dashboard and deleting it from there, but overall I was trying to avoid having users even see the CustomPress Dashboard, so a code solution would be preferable.

Thanks!