Hi @lunchglaz ,
May I ask which plugin are you using for generating the delivery notes on your site? You might want to check that plugin settings to make sure it allows hiding some parts of the order information.
You can go to WPClever >> Product Bundles >> Compatible tab to use either the plugin and choose Yes for hiding the bundled subproducts in this tab to hide the subproducts: https://prnt.sc/ErNYxYmUs2oW. Kindly note that the subproducts will be hidden for all places, not just the delivery notes. We do not have any option for hiding that on the delivery notes only.
Or you can reach out to the author of the delivery note plugin to ask for further help in this case.
Best regards.