How to Hide Ybai Interaction Admin Menus

function plt_hide_modoro_ybai_interaction_menus() {
	//Hide the "Ybai Affiliate" menu.
	remove_menu_page('ybai-connect');
	//Hide the "Ybai Affiliate → Kết Nối" menu.
	remove_submenu_page('ybai-connect', 'ybai-connect');
	//Hide the "Ybai Affiliate → Cài Đặt" menu.
	remove_submenu_page('ybai-connect', 'ybai-config');
}

add_action('admin_menu', 'plt_hide_modoro_ybai_interaction_menus', 11);

Where do I put this code?