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.

jwilsson

WordPress adds all kinds of <code><meta></code>-tags to the <code><head></code> section of your site. 
Some of these tags are quite good and have real uses, others make sense for some sites and others doesn’t. 
Some tags are even considered a security risk, since they tell the world which version of WordPress you’re currently running.
This plugin allows you to remove all of the <code><meta></code>-tags that WordPress outputs by default. 
You decide on a tag-by-tag basis which tags to remove and which to keep. Nothing’s enforced, you’re 100% in charge.

wp_head() cleaner

Great plugin

Remove unused tags from wp_head() output.

Nietzsche – WP Head Cleaner vs wp_head() cleaner