Hi @Christian Jhon, thanks for getting in touch with us.
Let me help you out with our default flow :
If the “Shipping” option is enabled via WCMp >> Settings >> General, then each vendor should be able to create their own shipping method. Now, we create a separate shipping package for each vendor.
Now, on the checkout page, WooCommerce creates cost per each shipping package. There are no settings or CSS to remove the section you shared via scrrenshot.
Let us know if you have any further queries.