Deletes a group. The group doesn't need to be empty to be deleted. If there are canaries in the group, they are not deleted when you delete the group.
See https://paws-r.github.io/docs/synthetics/delete_group.html for full documentation.
synthetics_delete_group(GroupIdentifier)[required] Specifies which group to delete. You can specify the group name, the
ARN, or the group ID as the GroupIdentifier.