How to Hide inSite by Duda: Personalization Made Easy Admin Menus

function plt_hide_insite_for_wp_personalization_made_easy_menus() {
	//Hide "inSite".
	remove_menu_page('insite');
	//Hide "inSite → inSite Library".
	remove_submenu_page('insite', 'insite');
	//Hide "inSite → My inSites".
	remove_submenu_page('insite', 'insite-my');
	//Hide "inSite → My Profile".
	remove_submenu_page('insite', 'insite-profile');
	//Hide "inSite → Stats".
	remove_submenu_page('insite', 'insite-stats');
	//Hide "inSite → FAQ".
	remove_submenu_page('insite', 'insite-faq');
}

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

Where do I put this code?