Completely Removes Emoji

/**
 * Snippet Name:     Completely removes emoji
 * Snippet Author:   coding-bunny.com
 * Description:      Completely removes emoji functionality from WordPress.
 */

add_action( 'init', 'cb_disable_emoji' );

function cb_disable_emoji() {
    // Remove emoji detection script from frontend and admin head
    remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
    remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
    
    // Remove emoji styles from frontend and admin
    remove_action( 'wp_print_styles', 'print_emoji_styles' );
    remove_action( 'admin_print_styles', 'print_emoji_styles' );
    
    // Remove emoji from content feeds and emails
    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 emoji from TinyMCE editor
    add_filter( 'tiny_mce_plugins', 'cb_remove_emoji_tinymce' );
}

function cb_remove_emoji_tinymce( $plugins ) {
    if ( is_array( $plugins ) ) {
        return array_diff( $plugins, array( 'wpemoji' ) );
    }
    return array();
}

// Remove emoji-related DNS prefetch
add_filter( 'wp_resource_hints', 'cb_remove_emoji_dns_prefetch', 10, 2 );

function cb_remove_emoji_dns_prefetch( $urls, $relation_type ) {
    if ( 'dns-prefetch' === $relation_type ) {
        $emoji_svg_url = apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/2/svg/' );
        $urls = array_diff( $urls, array( $emoji_svg_url ) );
    }
    return $urls;
}