I believe the section you're referring to sets out what provocation may look like for the purpose of self-defence. That would not be part of the new law on self-defence. That's actually a provision that's invoked very infrequently. I'm not aware of any cases where it has actually been an issue in a battered spouse type of situation. So its removal certainly wouldn't have any impact on that particular situation.
The presence of that provision really only serves one function, which is to determine whether self-defence would be available under section 34 or section 35. By collapsing all of the multiple self-defence provisions into one single, more generally applicable provision, there really is no need to have anything that defines what provocation would be. It simply would become a factor to consider in determining the defence overall, but it wouldn't be determinative of anything.