Can I exclude certain forms submissions to be saved in db and shown in WP admin?

I'm using a couple of gravity forms in my installation to replace the standard WooCommerce add-to-cart button. The submissions these forms generate is meant to add meta fields in WooCommerce orders. I don't need to save the forms submissions as standalone messages. In fact, I'm wondering if there's a way to disable saving to database of submissions coming from these specific forms (of course leaving untouched the submission that is used by WooCommerce). These forms might generate quite a lot of submissions to the database (even from unconfirmed clients who might add to cart and then not proceed to checkout). If there's no way to deactivate submissions for these forms what's your advice? Thank you