How to Hide Inventory Presser Admin Menus

function plt_hide_inventory_presser_menus() {
	//Hide "Vehicles".
	remove_menu_page('edit.php?post_type=inventory_vehicle');
	//Hide "Vehicles → All Vehicles".
	remove_submenu_page('edit.php?post_type=inventory_vehicle', 'edit.php?post_type=inventory_vehicle');
	//Hide "Vehicles → Add New Vehicle".
	remove_submenu_page('edit.php?post_type=inventory_vehicle', 'post-new.php?post_type=inventory_vehicle');
	//Hide "Vehicles → Taxonomies".
	remove_submenu_page('edit.php?post_type=inventory_vehicle', 'invp-taxonomies');
	//Hide "Vehicles → Options".
	remove_submenu_page('edit.php?post_type=inventory_vehicle', 'dealership-options');
}

add_action('admin_menu', 'plt_hide_inventory_presser_menus', 11);
Where do I put this code?