@fernandolopes
Sorry, there is no hook for this, these user roles are created in order to give users limited actions on what they can do with BackWPUp ( for example, BackWPUp Admin can do everything with BackWPUp plugin ).
If you don’t want to these BackWPUp roles appear, you can install user role management plugins to do that ??
Hope that may help you, I’m going to close the issue in here, let me know if you still have any question ??
If you find BackWPUp is useful for you, we would really appreciate if you leave a positive review and rating.
This would encourage us to develop new free features and provide free support ??
https://www.ads-software.com/support/plugin/backwpup/reviews/