Maybe Perma Delete

It can be quite annoying when you want to delete a post but it only has a Trash link. You then need to go into the trash to delete it for real. This plugin allows you to delete a post permanently by turning the trash links into a permanent delete link when you hold down the Esc key on your keyboard.

Maybe Perma Delete adds a convenient way to permanently delete content directly from the admin without the risk of pressing it accidentally:

• Esc-hover in post tables: Hold the Esc key while hovering over the Trash action in post, page, or custom post type lists. The link will change to Delete permanently for that specific row.
• Esc-hover on the post edit screen: On the single post edit screen, hold Esc while hovering over the Move to Trash link to turn it into Delete permanently.
• Bulk actions: The bulk actions dropdowns always include a Delete permanently option alongside the default Trash action.