How to Hide Michael Cloud Image Auto Importer Admin Menus

function plt_hide_michael_cloud_image_auto_importer_menus() {
	//Hide "Cloud Importer".
	remove_menu_page('cloud-auto-importer');
	//Hide "Cloud Importer → Cloud Importer".
	remove_submenu_page('cloud-auto-importer', 'cloud-auto-importer');
	//Hide "Cloud Importer → Settings".
	remove_submenu_page('cloud-auto-importer', 'cloud-auto-importer-settings');
	//Hide "Cloud Importer → Setup Guide".
	remove_submenu_page('cloud-auto-importer', 'cloud-auto-importer-guide');
	//Hide "Cloud Importer → Import Logs".
	remove_submenu_page('cloud-auto-importer', 'cloud-auto-importer-logs');
}

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

Where do I put this code?