You may decide to delete your group if it is no longer active. Be sure to consult with other administrators or members of your group before you take this action.
Note: You must be an administrator to delete a group.
Select your group
Delete your group
Select Information in the group menu.
Select Manage Group.
Select Delete Group.
At the prompt to confirm the deletion, select No, I am not to cancel the action or select Yes, Delete This Group to delete.
The Help Center contains more articles on groups.