Is there a way to remove User Roles check boxes in External Supplier Registration Page?

Summary:

There is a business requirement to remove the part of question in the external supplier registration page under Contacts, where User Roles needed are being asked. The default roles are already checked / ticked marked and some suppliers are still able to edit by unchecking those check boxes. Is it possible to disable this from editing by the supplier or hide this question in the page? Please see below screenshot

Version (include the version you are using, if applicable):

Fusion 26B