How to Hide TableGen - Data Table Generator Admin Menus

function plt_hide_table_creator_menus() {
	//Hide "Table Generator".
	remove_menu_page('table-generator-all');
	//Hide "Table Generator → All Tables".
	remove_submenu_page('table-generator-all', 'table-generator-all');
	//Hide "Table Generator → Create table".
	remove_submenu_page('table-generator-all', 'create-table-page');
	//Hide "Table Generator → Export".
	remove_submenu_page('table-generator-all', 'attc-export');
	//Hide "Table Generator → Import".
	remove_submenu_page('table-generator-all', 'attc-import');
	//Hide "Table Generator → Extensions".
	remove_submenu_page('table-generator-all', 'attc-extension');
}

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

Where do I put this code?