Clean up wp_head output

<?php
/**
 * Clean Up wp_head Output
 *
 * WordPress injects several meta tags and links into the <head> that most
 * sites don't need: RSD link (for blog clients), WLW manifest (Windows Live
 * Writer), shortlink, REST API discovery link, oEmbed discovery links, and
 * adjacent post prefetch. Removing these reduces HTML size and eliminates
 * unnecessary DNS lookups and HTTP requests.
 *
 * Usage: Add to functions.php.
 *
 * @category wordpress
 * @language php

 *
 * @author Adame Dahmani https://adame.io
 * @support Support my family project: https://adame.io/fundraiser
 */
remove_action( 'wp_head', 'rsd_link' );
remove_action( 'wp_head', 'wlwmanifest_link' );
remove_action( 'wp_head', 'wp_shortlink_wp_head' );
remove_action( 'wp_head', 'rest_output_link_wp_head' );
remove_action( 'wp_head', 'wp_oembed_add_discovery_links' );
remove_action( 'wp_head', 'wp_oembed_add_host_js' );
remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head', 10 );
remove_action( 'wp_head', 'feed_links_extra', 3 );