Removes "Howdy" from the WordPress 3.3 toolbar

no-howdy.php

<?php
/*
Plugin Name: No Howdy
Description: Removes "Howdy, " from the toolbar
Version: 0.1
License: GPL version 2 or any later version
Author: Mark Jaquith
Author URI: http://coveredwebservices.com/
*/

class CWS_No_Howdy {
	const howdy = 'Howdy, %1$s';
	const no_howdy = '%s';

	public function __construct() {
		// Limit the scope of our filter to the 'admin_bar_menu' hook between 0 and 9999
		add_action( 'admin_bar_menu', array( $this, 'hook_in' ), 0 );
		add_action( 'admin_bar_menu', array( $this, 'hook_out' ), 9999 );
	}

	public function hook_in() {
		add_filter( 'gettext', array( $this, 'kill_howdy' ) );
	}

	public function hook_out() {
		remove_filter( 'gettext', array( $this, 'kill_howdy' ) );
	}

	public function kill_howdy( $text ) {
		if ( self::howdy === $text ) {
			$this->hook_out(); // We're done, so let's remove ourselves.
			return self::no_howdy;
		}
		return $text;
	}
}

new CWS_No_Howdy;

How about an additional

remove_action( 'admin_bar_menu', array( $this, 'hook_out' ), 9999 );

before line 32?