Mario Peshev

Delete the posts from Custom Post Types that are no longer active for the install.
Navigate to Settings -> Remove Oldies and delete the posts from a given post type that is not active anymore.

DX Remove Oldies

Delete the posts from Custom Post Types that are no longer active for the install.

Amaury Balmer

WordPress 3.1 and up allow to manage new custom post type, this plugin makes it even simpler, removing the need for you to write any code. Excerpt update your theme !
This plugin provides a nice interface and easy access. The plugin provides almost all the parameters of the WordPress CPT API.
It’s possible to manage the permissions of custom post types such as articles or pages. Or create a full set of custom permissions and related roles !
This plugin is developped on WordPress 3.3, with the constant WP_DEBUG to TRUE.

Simple Custom Post Types

WordPress 3.1 and up allow to manage new custom post type, this plugin makes it even simpler, removing the need for you to write any code.

DX Remove Oldies vs Simple Custom Post Types