function plt_hide_plastic_tunes_menus() {
//Hide the "Tools → Plastic Tunes" menu.
remove_submenu_page('tools.php', 'plastic_tunes.php');
//Hide the "Settings → Plastic Tunes" menu.
remove_submenu_page('options-general.php', 'plastic_tunes.php');
}
add_action('admin_menu', 'plt_hide_plastic_tunes_menus', 11);