To create order rules, you need the Order Rules module, if you would like to purchase this, please raise a new case online and reference the title of this article.
The RemoveProduct Order Rule action will remove a product on an Order according to various conditions. This can be beneficial if you wish to remove a product based on specific conditions. Only one SKU (Regardless of units) can be removed per order rule.
In the Param field, enter the SKU to remove.