How to Hide iPanorama 360 - Advanced Virtual Tour Builder Admin Menus

function plt_hide_ipanorama_360_virtual_tour_builder_lite_menus() {
	//Hide "iPanorama 360".
	remove_menu_page('ipanorama');
	//Hide "iPanorama 360 → All Items".
	remove_submenu_page('ipanorama', 'ipanorama');
	//Hide "iPanorama 360 → Add New".
	remove_submenu_page('ipanorama', 'ipanorama_item');
	//Hide "iPanorama 360 → Settings".
	remove_submenu_page('ipanorama', 'ipanorama_settings');
	//Hide "iPanorama 360 → Upgrade to Pro".
	remove_submenu_page('ipanorama', 'ipanorama_upgrade_to_pro');
}

add_action('admin_menu', 'plt_hide_ipanorama_360_virtual_tour_builder_lite_menus', 11);

Where do I put this code?