Follow-up from "Move billable members fetching and removing to the list component"

The following discussion from !181696 (merged) should be addressed:

• @f_caplette started a discussion: (+2 comments)

  Question Is it expected that the VueX getter isLoading still contains isRemovingBillableMember when now the action to remove is executed from Apollo? 🤔 Looking at other components, is it possible that we can now remove this logic out of the VueX store?