wordpress移除emoji并禁止头像加载s.w.org

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');
//禁止加载s.w.org并移动dns-prefetch
function remove_dns_prefetch( $hints, $relation_type ) {
    if ( 'dns-prefetch' === $relation_type ) {
		return array_diff( wp_dependencies_unique_hosts(), $hints );
    }
    return $hints;
}
add_filter( 'wp_resource_hints', 'remove_dns_prefetch', 10, 2 );