function plt_hide_atec_backup_menus() {
//Hide the "atec-systems" menu.
remove_menu_page('atec_group');
//Hide the "atec-systems → Dashboard" menu.
remove_submenu_page('atec_group', 'atec_group');
//Hide the "atec-systems → Backup" menu.
remove_submenu_page('atec_group', 'atec_wpb');
}
add_action('admin_menu', 'plt_hide_atec_backup_menus', 11);