You can do this really easily with a functions.php code snippet:

// Remove items from the admin bar

function remove_from_admin_bar($wp_admin_bar) {

/*

* Placing items in here will only remove them from admin bar

* when viewing the fronte end of the site

*/

if ( ! is_admin() ) {

// Example of removing item generated by plugin. Full ID is #wp-admin-bar-si_menu

$wp_admin_bar->remove_node('si_menu');

// WordPress Core Items (uncomment to remove)

$wp_admin_bar->remove_node('analyticswp');

}

/*

* Items placed outside the if statement will remove it from both the frontend

* and backend of the site

*/

$wp_admin_bar->remove_node('analyticswp');

}

add_action('admin_bar_menu', 'remove_from_admin_bar', 999);