ceph-rgw: remove ceph_pool state and default value
ceph-rgw: remove ceph_pool state and default value

Since the state is now optional and default values are handled in the
ceph_pool module itself.

Signed-off-by: Dimitri Savineau <a50a620e679eed14f4e99998b821cea8884cf228@redhat.com>

ceph/ceph-ansible,ceph/ceph-ansible