Refactor PostgreSQL configuration and deployment to use new patterns.

apps/postgres/kustomization.yaml

@@ -8,30 +8,7 @@ labels:
       managedBy: kustomize
       partOf: wild-cloud
 resources:
-  - config
   - deployment.yaml
   - namespace.yaml
   - service.yaml
   - pvc.yaml
-
-replacements:
-  - source:
-      kind: ConfigMap
-      name: config
-      fieldPath: data.POSTGRES_STORAGE
-    targets:
-      - fieldPaths:
-          - spec.resources.requests.storage
-        select:
-          kind: PersistentVolumeClaim
-          name: postgresql-pvc
-  - source:
-      kind: ConfigMap
-      name: config
-      fieldPath: data.POSTGRES_IMAGE
-    targets:
-      - fieldPaths:
-          - spec.template.spec.containers.0.image
-        select:
-          kind: Deployment
-          name: postgres-deployment