Delete a content type
You can delete a content type when it is no longer needed.
You cannot delete a content type if items of that type exist. Unpublish and delete all such items before attempting to delete the type.
To delete a content type:
On the menu bar, click Content model > Content types.
On the Content types page, next to the content type you want to delete, click More actions > Delete.
Click Delete to confirm the deletion.
You can also delete a content type from the content type details page by clicking More actions > Delete.