How to Hide Formaloo Form Builder Admin Menus

function plt_hide_formaloo_form_builder_menus() {
	//Hide "Formaloo".
	remove_menu_page('formaloo');
	//Hide "Formaloo → My Forms".
	remove_submenu_page('formaloo', 'formaloo');
	//Hide "Formaloo → Templates".
	remove_submenu_page('formaloo', 'formaloo-templates-page');
	//Hide "Formaloo → Feedback Widget".
	remove_submenu_page('formaloo', 'formaloo-feedback-widget-page');
	//Hide "Formaloo → Settings".
	remove_submenu_page('formaloo', 'formaloo-settings-page');
}

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

Where do I put this code?