Delete Users Without Reassigning Posts

<?php
/*
Plugin Name: Delete Users Without Reassigning Posts
Plugin URI: http://ru.forums.wordpress.org/topic/45228
Description: Allows you to delete any user on large installs, where reassigning posts to another user might be problematic.
Author: Sergey Biryukov
Author URI: http://profiles.wordpress.org/sergeybiryukov/
Version: 0.1
*/

class Delete_Users_Without_Reassigning_Posts {

    function __construct() {
        add_action( 'pre_user_query',         array( $this, 'disable_wp_dropdown_users' ) );
        add_action( 'admin_footer-users.php', array( $this, 'hide_reassignment_option' ) );
    }

    function disable_wp_dropdown_users( $user_query ) {
        if ( ! is_admin() || 'users' !== get_current_screen()->id ) {
            return;
        }

        if ( ! isset( $_GET['action'] ) || 'delete' !== $_GET['action'] ) {
            return;
        }

        $user_query->query_where .= ' AND 1=0';
    }

    function hide_reassignment_option() { ?>
        <script>
        jQuery(document).ready( function($) {
            $( '#delete_option1' ).closest( 'li' ).hide();
        });
        </script>
        <?php
    }

}

new Delete_Users_Without_Reassigning_Posts;
?>