Dead Writers Society

Light and fast wp_head() cleaner. Just activate it and all unnecessary code will be deleted from site header section. It will improve loading speed of your website.
This plugin will remove:
<ul>
<li>WordPress version</li>
<li>shortlink</li>
<li>Really Simple Discovery link</li>
<li>RSS feed links</li>
<li>all extra RSS feed links</li>
<li>wlwmanifest.xml</li>
<li>meta rel=dns-prefetch href=//s.w.org</li>
<li>the next and previous post links</li>
<li>Emoji icons</li>
<li>WordPress REST API</li>
<li>oEmbed</li>
</ul>
Feeds (RSS, RSS2, Atom & RDF) and comments feeds will be disabled and redirected to home page for security reasons.

Nietzsche – WP Head Cleaner

This plugin cleans up the wp_head() and removes unnecessary code.

Bas Matthee

Tweak the performance and automated settings of your WordPress wsite by checking or unchecking the numerous options on the settings page.
Activate the plugin and select the desired settings in the ‘Simple Tweak’ settings page!

LSD Simple Tweak

Tweak the performance and automated settings of your Wordpress wsite by checking or unchecking the numerous options on the settings page.

Nietzsche – WP Head Cleaner vs LSD Simple Tweak