[SDC] Use global storage templates for PVC

OOM has now templates in order to create the needed PVC, using:

* a PV with a specific class when using a common nfs mount path between
nodes (sames as today use) --> is the default behavior today
* or a storage class if we want to use dynamic PV.
  On this case, we use (in order of priority):
  - persistence.storageClassOverride if set on the chart
  - global.persistence.storageClass if set globally
  - persistence.storageClass if set on the chart

Change-Id: Ic34dcbc609edaa79109aacb83bbc019b55e6d02e
Issue-ID: OOM-1227
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
diff --git a/kubernetes/sdc/charts/sdc-onboarding-be/templates/pvc.yaml b/kubernetes/sdc/charts/sdc-onboarding-be/templates/pvc.yaml
index eb2c372..662370d 100644
--- a/kubernetes/sdc/charts/sdc-onboarding-be/templates/pvc.yaml
+++ b/kubernetes/sdc/charts/sdc-onboarding-be/templates/pvc.yaml
@@ -31,19 +31,10 @@
 {{ toYaml .Values.cert.persistence.annotations | indent 4 }}
 {{- end }}
 spec:
-  selector:
-    matchLabels:
-      name: {{ include "common.fullname" . }}
   accessModes:
     - {{ .Values.cert.persistence.accessMode }}
+  storageClassName: {{ include "common.storageClass" . }}
   resources:
     requests:
       storage: {{ .Values.cert.persistence.size }}
-{{- if .Values.cert.persistence.storageClass }}
-{{- if (eq "-" .Values.cert.persistence.storageClass) }}
-  storageClassName: ""
-{{- else }}
-  storageClassName: "{{ .Values.cert.persistence.storageClass }}"
-{{- end }}
-{{- end }}
-{{- end -}}
\ No newline at end of file
+{{- end -}}