Remove rgw default zone and realm

We don't test RGW multisite in OpenStack. From squid+ a default realm is
not deployed anymore, resulting in RGW deployment failures. This patch
removes both default realm and zone from the RGW spec.

Signed-off-by: Francesco Pantano <fpantano@redhat.com>

Author: fmount

roles/cifmw_cephadm/templates/ceph_rgw.yml.j2

@@ -11,8 +11,6 @@ networks:
 - {{ cifmw_cephadm_rgw_network }}
 spec:
   rgw_frontend_port: 8082
-  rgw_realm: default
-  rgw_zone: default
 {% if rgw_frontend_cert is defined %}
   ssl: true
   rgw_frontend_ssl_certificate: |