WordPress plugin that prevents the "New WordPress Site" e-mail from being sent out

gistfile1.php

<?php
/*
Plugin Name: No "New WordPress Site" E-mail
Description: Prevents the "New WordPress Site" e-mail from being sent out
Version: 0.1
Author: Mark Jaquith
Author URI: http://coveredwebservices.com/
*/

class CWS_No_New_WordPress_Site_Email {
  static $instance;

	public function __construct() {
		self::$instance = $this;
		add_action( 'phpmailer_init', array( $this, 'maybe_kill_email' ) );
	}

	public function maybe_kill_email( $phpmailer ) {
		/*
		If the subject matches, we call ->ClearAllReicpients(), which unsets all
		recipient addresses and will cause ->Send() to error (a caught exception),
		effectively canceling the e-mail
		*/
		if ( 'New WordPress Site' === $phpmailer->Subject )
			$phpmailer->ClearAllRecipients();
	}
}

new CWS_No_New_WordPress_Site_Email;