WordPress: Remove links from WordPress Admin Bar

functions.php

<?php
// The follow will remove the updates, comments, new content and performance links from the admin bar if the user isn't the admin user.
// On most WordPress blogs the admin user has the User ID of 1 so you can apply the following snippet.
function remove_admin_bar_links() {
	global $wp_admin_bar, $current_user;
		if ($current_user->ID != 1) {
		$wp_admin_bar->remove_menu('updates');          // Remove the updates link
		$wp_admin_bar->remove_menu('comments');         // Remove the comments link
		$wp_admin_bar->remove_menu('new-content');      // Remove the content link
		$wp_admin_bar->remove_menu('w3tc');             // If you use w3 total cache remove the performance link
		$wp_admin_bar->remove_menu('my-account');       // Remove the user details tab
	}
}
add_action( 'wp_before_admin_bar_render', 'remove_admin_bar_links' );