Action hook missing on cbox theme

In cbox theme’s customized register.php file the original BuddyPress action hook ‘bp_signup_profile_fields’ is missing. It is needed, however, to render a captcha into the registration form and to attend to other needs.
Delete BP’s hooks is not a good idea, as plugins that make use of that hook will not work properply with your theme.
Is it possible for you to bring that hook back in a new version of the theme?
Thank you.

https://www.ads-software.com/plugins/commons-in-a-box/