chore(ironic): understack-data PVC is unused so retire it

This PVC is unused for any data so let's retire it to not leave used
cruft behind.

Author: cardoe

components/ironic/dnsmasq-ss.yaml

@@ -78,9 +78,6 @@ spec:
               mountPath: /etc/dnsmasq.d
             - name: pod-dhcp
               mountPath: /var/lib/misc
-            - name: understack-data
-              mountPath: /var/lib/understack/
-              readOnly: true
       volumes:
         - name: pod-tmp
           emptyDir: {}
@@ -90,6 +87,3 @@ spec:
         - name: pod-dhcp
           persistentVolumeClaim:
             claimName: dnsmasq-dhcp
-        - name: understack-data
-          persistentVolumeClaim:
-            claimName: understack-data

components/ironic/kustomization.yaml

@@ -7,7 +7,6 @@ resources:
   - ironic-rabbitmq-queue.yaml
   - dnsmasq-pvc.yaml
   - dnsmasq-ss.yaml
-  - understack-data-pvc.yaml
   - ironic-ks-user-baremetal.yaml
   # less than ideal addition but necessary so that we can have the ironic.conf.d loading
   # working due to the way the chart hardcodes the config-file parameter which then

components/ironic/understack-data-pvc.yaml

@@ -215,8 +215,6 @@ pod:
             mountPath: /etc/dnsmasq.d/
           - name: dnsmasq-dhcp
             mountPath: /var/lib/dnsmasq/
-          - name: understack-data
-            mountPath: /var/lib/understack
           - name: device-types
             mountPath: /var/lib/understack/device-types
           - name: ironic-etc-snippets
@@ -229,9 +227,6 @@ pod:
           - name: dnsmasq-dhcp
             persistentVolumeClaim:
               claimName: dnsmasq-dhcp
-          - name: understack-data
-            persistentVolumeClaim:
-              claimName: understack-data
           - name: device-types
             configMap:
               name: device-types