Drop atomic-enterprise as a valid deployment type in upgrade.

playbooks/common/openshift-cluster/upgrades/pre.yml

@@ -42,9 +42,9 @@
   tasks:
   - fail:
       msg: >
-        This upgrade is only supported for atomic-enterprise, origin, openshift-enterprise, and online
+        This upgrade is only supported for origin, openshift-enterprise, and online
         deployment types
-    when: deployment_type not in ['atomic-enterprise', 'origin','openshift-enterprise', 'online']
+    when: deployment_type not in ['origin','openshift-enterprise', 'online']
 
   # Error out in situations where the user has older versions specified in their
   # inventory in any of the openshift_release, openshift_image_tag, and