if there are no members then you don’t need to worry. Deleting the group is pretty benign. The only possible impact comes with how the group was used. For example if you had dashboards, filters, boards that were shared with the group then they would stop working but then again there is no one left to know it so no big deal. As an admin you will want to eventually clean that up.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.