function plt_hide_bus_ticket_booking_with_seat_reservation_menus() {
//Hide the "Bus" menu.
remove_menu_page('wbtm_bus');
//Hide the "Bus → Bus" menu.
remove_submenu_page('wbtm_bus', 'wbtm_bus');
//Hide the "Bus → Quick Setup" menu.
remove_submenu_page('wbtm_bus', 'wbtm_quick_setup');
}
add_action('admin_menu', 'plt_hide_bus_ticket_booking_with_seat_reservation_menus', 11);