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-core/templates/core-deployment.yaml b/xos-core/templates/core-deployment.yaml
index a785392..54b2a5a 100644
--- a/xos-core/templates/core-deployment.yaml
+++ b/xos-core/templates/core-deployment.yaml
@@ -28,8 +28,8 @@
     spec:
       containers:
         - name: xos-core
-          image: {{ .Values.global.registry }}{{ .Values.images.xos_core.repository }}:{{ tpl .Values.images.xos_core.tag . }}
-          imagePullPolicy: {{ .Values.images.xos_core.pullPolicy }}
+          image: {{ tpl .Values.xos_coreImage . | quote }}
+          imagePullPolicy: {{ .Values.imagePullPolicy }}
           command: ["/bin/bash", "-c", "cd coreapi; ./start_coreapi.sh"]
           ports:
             - containerPort: 50051