Jetpack_Options::delete_grouped_option PHP Method

    private static function delete_grouped_option($group, $names)
    {
        $options = get_option(self::$grouped_options[$group], array());
        $to_delete = array_intersect($names, self::get_option_names($group), array_keys($options));
        if ($to_delete) {
            foreach ($to_delete as $name) {
                unset($options[$name]);
            }
            return update_option(self::$grouped_options[$group], $options);
        }
        return true;
    }