Theme function disable emoji’s

Disable the emoji’s in theme function. Filter function used to remove the tinymce emoji plugin. Remove emoji CDN hostname from DNS prefetching hints.

<?php
/** Disable emoji's **/
function disable_emojis() {
	
	 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' );
	 add_filter( 'tiny_mce_plugins', 'disable_emojis_tinymce' );
	 add_filter( 'wp_resource_hints', 'disable_emojis_remove_dns_prefetch', 10, 2 );
	 
}
add_action( 'init', 'disable_emojis' );

/**
 * Filter function used to remove the tinymce emoji plugin
 * 
 * @param array $plugins 
 * @return array difference betwen the two arrays
**/
function disable_emojis_tinymce( $plugins ) {
	
	 if ( is_array( $plugins ) ) {
		 
	 	return array_diff( $plugins, array( 'wpemoji' ) );
	 
	 }else{
		 
	 	return array();
	 	
	 }
}

/**
 * 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 difference betwen the two arrays
**/
function disable_emojis_remove_dns_prefetch( $urls, $relation_type ) {
 if ( 'dns-prefetch' == $relation_type ) {
	 
		 // Further filter documentation in wp-includes/formatting.php
		 $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;
 	
}