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.
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