function plt_hide_brightslider_menus() {
//Hide the "Slides" menu.
remove_menu_page('edit.php?post_type=bs_slide');
//Hide the "Slides → All Slides" menu.
remove_submenu_page('edit.php?post_type=bs_slide', 'edit.php?post_type=bs_slide');
//Hide the "Slides → Add New" menu.
remove_submenu_page('edit.php?post_type=bs_slide', 'post-new.php?post_type=bs_slide');
}
add_action('admin_menu', 'plt_hide_brightslider_menus', 15);