unable to delete a custom content type I just followed http://www.andypangus.com/drupal-7-adding-roles-to-users-dynamically to create a new content type. I am successfully able to create it, but when I uninstall the module, the content type is not getting deleted. I also cannot delete it from the admin interface; there is no delete option. 

Why cannot I remove the content type? How should I remove it?
Make sure you actually uninstall the module as opposed to just disabling it.

Uninstall is an additional tab on Admin > Modules page.

If that doesn't work, you could try calling node_type_delete($type) from somewhere.