You definitely noticed there is a “Order Notes” option in your WooCommerce checkout page. It serves well for a lot of eCommerce website but sometimes it is not needed. Like me I normally remove it in my own sites. As I do not need it, I think it will simple increase confusion for my potential clients. It is easy to remove it and you only need to use one line of code to remove this.
Use the above code in your functions.php file and you are done 🙂