Remove Contact Form 7 Modules nag box

Removes the nag box from Contact Form 7 Modules.

Save file as cf7-modules-nag-remover.php and put in your /wp-content/plugins.

Then enable the plugin.

Works great with multisite!

<?php
/*
Plugin Name: Contact Form 7 Modules nag remover
Plugin URI:
Description: Removes Contact Form 7 Modules nag screen
Version: 2014.03.27
Author: khromov
Author URI: http://profiles.wordpress.org/khromov/
License: GPL2
*/
//admin_notices
add_action('init', function()
{
    if(is_admin())
    {
        if((int)get_option('cf7_modules_hide_promo_message')!==3)
            update_option('cf7_modules_hide_promo_message', 3);
    }
}, 1);