WordPress - Blocks Admin Panel from loading Google Fonts - Open Sans, mainly for work offline. I hate the lag when there is no internet.

vw_block_open_sans.php

<?php

/**
 * Blocks Admin Panel from loading Google Fonts - Open Sans, mainly for work offline. I hate the lag when there is no internet.
 *
 * Created 6/21/14, 12:57 PM
 *
 * @category   WordPress Plugin
 * @package    Block External Scripts - block_external_scripts.php
 * @author     Jeff Behnke <code@validwebs.com>
 * @copyright  2009-14 ValidWebs.com
 * @license    GPL
 * @version    0.0.1
 */

/*
Plugin Name: Block External Scripts
Plugin URI: http://validwebs.com
Description: Blocks Admin Panel from loading Google Fonts - Open Sans, mainly for work offline. I hate the lag when there is no internet.
Version: 0.0.1
Author: Jeff Behnke <code@validwebs.com>
Author URI: http://validwebs.com
License: GPL
*/

/*  Copyright (c) 2009 - 2014 Jeff Behnke  (email : code@validwebs.com)

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License, version 2, as
    published by the Free Software Foundation.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

if ( ! defined( 'ABSPATH' ) ) exit;

/**
 * Blocks Admin Panel from loading Google Fonts - Open Sans, mainly for work offline. I hate the lag when there is no internet.
 *
 * @author         Jeff Behnke <code@validwebs.com>
 * @copyright  (c) 2014 ValidWebs.com
 *
 * Created:    6/21/14, 1:14 PM
 *
 * @param object WP_Styles $styles
 */
function vw_block_open_sans ($styles) {

	$open_sans = $styles->registered{'open-sans'};
	$open_sans->src = null;
	return $styles;
}
add_action( 'wp_default_styles', 'vw_block_open_sans', 100);

Not sure if this is the correct way, but it works cleanly.