How to Hide Culqi Full Integration Admin Menus

function plt_hide_culqi_full_integration_menus() {
	//Hide "Culqi Full Integration".
	remove_menu_page('fullculqi_menu');
	//Hide "Culqi Full Integration → Charges".
	remove_submenu_page('fullculqi_menu', 'edit.php?post_type=culqi_charges');
	//Hide "Culqi Full Integration → Orders".
	remove_submenu_page('fullculqi_menu', 'edit.php?post_type=culqi_orders');
	//Hide "Culqi Full Integration → Customers".
	remove_submenu_page('fullculqi_menu', 'edit.php?post_type=culqi_customers');
	//Hide "Culqi Full Integration → Settings".
	remove_submenu_page('fullculqi_menu', 'fullculqi_settings');
	//Hide "Culqi Full Integration → Webhooks".
	remove_submenu_page('fullculqi_menu', 'fullculqi_webhooks');
	//Hide "Culqi Full Integration → Add-ons".
	remove_submenu_page('fullculqi_menu', 'fullculqi_addons');
}

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

Where do I put this code?