Merge branch 'nick_tetrate-master-patch-68319' into 'master'

dont hard code values

See merge request platform-one/big-bang/bigbang!345

chart/templates/istio/operator/values.yaml

@@ -3,8 +3,6 @@
 {{- end }}
 
 {{- define "bigbang.defaults.istiooperator" -}}
-hub: registry1.dso.mil/ironbank/opensource/istio
-tag: 1.7.3
 createNamespace: false
 
 imagePullSecrets: