AMBARI-11557. yarn.admin.acl set to empty string causes all data to be exposed in Tez view (aonishuk)

ambari-server/src/main/resources/stacks/HDP/2.2/services/YARN/kerberos.json

@@ -19,7 +19,6 @@
             "yarn.timeline-service.enabled": "true",
             "yarn.timeline-service.http-authentication.type": "kerberos",
             "yarn.acl.enable": "true",
-            "yarn.admin.acl": " ",
             "yarn.timeline-service.http-authentication.signature.secret": "",
             "yarn.timeline-service.http-authentication.signature.secret.file": "",
             "yarn.timeline-service.http-authentication.signer.secret.provider": "",