Remove the Emoji Support in WordPress. #performance

emoji-removel.php

<?php declare(strict_types=1);
/**
 * Plugin Name: Emoji Removel.
 * Description: Remove all Emoji support to laod faster on back - and front-end.
 */

add_action(
    'init',
    function () {
        remove_action('wp_head', 'print_emoji_detection_script', 7);
        remove_action('admin_print_scripts', 'print_emoji_detection_script');
        remove_action('wp_print_styles', 'print_emoji_styles');
        remove_action('admin_print_styles', 'print_emoji_styles');
        remove_filter('the_content_feed', 'wp_staticize_emoji');
        remove_filter('comment_text_rss', 'wp_staticize_emoji');
        remove_filter('wp_mail', 'wp_staticize_emoji_for_email');

        // Remove the tinymce emoji plugin.
        add_filter(
            'tiny_mce_plugins',
            function (array $plugins): array {
                if (is_array($plugins)) {
                    return array_diff($plugins, ['wpemoji']);
                }
                return [];
            }
        );

        add_filter(
            'wp_resource_hints',
            /**
             *  Remove emoji CDN hostname from DNS prefetching hints.
             *
             * @param  array $urls URLs to print for resource hints.
             * @param  string $relation_type The relation type the URLs are printed for.
             *
             * @return array $urls
             */
            function (array $urls, string $relation_type): array {
                if ('dns-prefetch' === $relation_type) {
                    /** This filter is documented in wp-includes/formatting.php */
                    $emoji_svg_url = apply_filters('emoji_svg_url', 'https://s.w.org/images/core/emoji/2.3/svg/');

                    $urls = array_diff($urls, [$emoji_svg_url]);
                }

                return $urls;
            },
            10,
            2
        );
    }
);