Saeed Ullah Khan

In WordPress 2.9 custom post type was introduced, that opened a new world for many WordPress developers. 
When it comes to removing the slug and not destroying the rewrite rules for other post types this plugin works great. 
This only concerns those who are using %postname% as permalink structure and want to add a custom post type so that 
the urls for them are in the same way as normal posts and pages: http://siteurl/%custom_post_type_title%/.
Find more useful tips and plugins: <a href="http://www.arhamsoft.com/" title="More WordPress plugins" rel="nofollow ugc">web tips</a>

Remove All Post Slug

Add rewrite rules for custom post type so that the urls for them are in the same way as normal posts: http://siteurl/%custom_post_type_title%/.

MageINIC

Vala bhavesh v

This plugin is use to remove your slug in custom post type and default post type.

Remove custom post type slug from URL

This plugin is use to remove your slug in custom post type and default post type.

Remove All Post Slug vs Remove custom post type slug from URL