Arnjen

Use Tools → 410 Link Unlinker to paste a list of URLs. Run a dry-run to preview, then apply. Optional: include wp_postmeta.
<h3>License</h3>
This plugin is licensed under the GPLv2 or later.

410 Link Unlinker

Removes anchor wrappers (…) in posts/pages (and optionally postmeta) when links match a provided list (e.g., 410 Gone). Keeps the visible text.

alpipego

tiny web

Hans Jung

In accordance with the <a href="https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.11" rel="nofollow ugc">HTTP Specification</a>, the 410 status code in the response header indicates that the requested resource is gone (permanently removed).
Features:
<ul>
<li>When deleting pages, posts, categories or tags from WordPress, the ultimate 410 status code will ask if a 410 response code should be set for the deleted URL.</li>
<li>Add 410 URLs manually</li>
<li>Add 410 URL schemes via regex (regular expressions)</li>
<li>Bulk upload 410 URLs via csv-file.
<ul>
<li>works even if the csv-file contains a BOM</li>
</ul>
</li>
</ul>
If you come across any bugs or have suggestions, please use the plugin support forum.

Ultimate 410 Gone Status Code

Easy “410 – gone” status code plugin for WordPress: CSV bulk upload, manual & regex entry, 410 option when deleting pages, posts, categories & tags.

410 Link Unlinker vs Ultimate 410 Gone Status Code