How to add delete link for imported content type For the content type which is imported by feature, there is no delete link for it, but we can delete them by going to the url /admin/structure/types/manage/YOUR_CONTENT_TYPE/delete

My question is how to make the delete link also available for the imported content type?
Although I am agains editing db directly, the simplest solution would be do edit table in your database.

find 'node_type' table and under 'custom', for your content type, change 0 to 1.