Louis

This WordPress Plugin removes authors from the Yoast SEO Sitemap.
<ul>
<li>No setup required!</li>
</ul>

WP Remove Authors Sitemap from Yoast SEO

License: GPLv2 or later WordPress plugin to remove authors from the Yoast SEO Sitemap

Rob Scott

Eazy HTTP Headers provides three check boxes for settings on the general settings page. 
Two of the check boxes, activate two functions built into WordPress, send_frame_options_header() & send_nosniff_header(), while the other sets a header for X-XSS Protection. 
This allows you to control your sites HTTP Headers for X-Frame-Options & X-Content-Type-Options using functions built into WordPress functions.

Eazy HTTP Headers

Provides settings to activate three HTTP header settings for X-Frame-Options, X-XSS Protection & X-Content-Type-Options.

WP Remove Authors Sitemap from Yoast SEO vs Eazy HTTP Headers