We had added a role to a community group with 2000 members. After addition of this role, all the members were subscribed to the forum. We found out that too many members had been added to the role, so we deleted the role from membership. After deletion of this role from membership, we noticed that the role members were still subscribed to the forum even after we deleted them from membership. Is there a way to delete the subscriptions for the 2000 people that were in the role. .