How to Hide PantherMedia Stock Photo Admin Menus

function plt_hide_panthermedia_stock_photo_menus() {
	//Hide "PantherMedia".
	remove_menu_page('panthermedia-stock-photo/classes/panthermedia-stock-photo.php');
	//Hide "PantherMedia → Search".
	remove_submenu_page('panthermedia-stock-photo/classes/panthermedia-stock-photo.php', 'panthermedia-stock-photo/classes/panthermedia-stock-photo.php');
	//Hide "PantherMedia → My Media".
	remove_submenu_page('panthermedia-stock-photo/classes/panthermedia-stock-photo.php', 'panthermedia-stock-photo/classes/panthermedia-stock-photo_mymedia');
	//Hide "PantherMedia → Account".
	remove_submenu_page('panthermedia-stock-photo/classes/panthermedia-stock-photo.php', 'panthermedia-stock-photo/classes/panthermedia-stock-photo_login');
	//Hide "PantherMedia → Settings".
	remove_submenu_page('panthermedia-stock-photo/classes/panthermedia-stock-photo.php', 'panthermedia-stock-photo/classes/panthermedia-stock-photo_settings');
}

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

Where do I put this code?