Revert "XOS/NEM charts, use a global registry var, split docker image name/tag/pullPolicy"

This reverts commit 1f58c2afbd680c8c618bff6f66e9982515dd1caf.

Change-Id: I0d7ef37a420168276472675b005482d6d11daabd
diff --git a/xos-db/templates/db-deployment.yaml b/xos-db/templates/db-deployment.yaml
index d467b05..a3d3e91 100644
--- a/xos-db/templates/db-deployment.yaml
+++ b/xos-db/templates/db-deployment.yaml
@@ -28,8 +28,8 @@
     spec:
       containers:
         - name: xos-db
-          image:  {{ .Values.global.registry }}{{ .Values.image.repository }}:{{ tpl .Values.image.tag . }}
-          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          image: {{ .Values.postgresImage | quote }}
+          imagePullPolicy: {{ .Values.imagePullPolicy }}
           ports:
             - containerPort: 5432
               protocol: TCP