After removing any shortcode plugin or theme from your WordPress site, a lot of unwanted shortcodes are left on your blog, they show up as
[shortcode id="1234"] inside your posts, pages etc. In order to remove such dead shortcodes you will need risky database queries which is not what you want. This tutorial is on Hide Unwanted Shortcodes plugin which allows you to prevent all unwanted shortcodes from showing-up on your blog.
Hide Unwanted Shortcodes doesn’t deletes the shortcodes from MySQL Database or Post Editor, instead it prevent shortcodes from showing up in the front-end of your Blog by returning nothing to content.
Installation & Usage: Install and activate the plugin. After activation visit your admin area Dashboard -> Settings -> Hide Unwanted Shortcodes page and here you can add and save unwanted shortcode tag names and the plugin will do the rest.