function plt_hide_unipixel_menus() {
//Hide "UniPixel".
remove_menu_page('unipixel');
//Hide "UniPixel → UniPixel".
remove_submenu_page('unipixel', 'unipixel');
//Hide "UniPixel → Meta Setup".
remove_submenu_page('unipixel', 'unipixel_setup_meta');
//Hide "UniPixel → Google Setup".
remove_submenu_page('unipixel', 'unipixel_setup_google');
}
add_action('admin_menu', 'plt_hide_unipixel_menus', 11);