fix(database): Fix database shared template

The template still contained a wrong namespace name which was a copied
from a policy template. Since the switch to a simple shared document the
namespace name is filled in by kustomize instead and therefore has to be
removed from the shared file.

shared/networkpolicies/allow-from-database.yaml

@@ -2,7 +2,6 @@ apiVersion: networking.k8s.io/v1
 kind: NetworkPolicy
 metadata:
   name: allow-from-database
-  namespace: "{{request.object.metadata.name}}"
 spec:
   policyTypes:
   - Ingress