fix: remove NetworkPolicy quota (no user create RBAC)

No role grants networkpolicies.create permission, so users cannot
create NetworkPolicy resources. Remove the quota registration and
claim policy since they would never be triggered.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: zachsmith1

config/quota/claim-policies/kustomization.yaml

@@ -17,6 +17,5 @@ resources:
   - httproute-claim-policy.yaml
   - httproutefilter-claim-policy.yaml
   - network-claim-policy.yaml
-  - networkpolicy-claim-policy.yaml
   - securitypolicy-claim-policy.yaml
   - trafficprotectionpolicy-claim-policy.yaml

config/quota/claim-policies/networkpolicy-claim-policy.yaml

@@ -17,6 +17,5 @@ resources:
   - httproute-registration.yaml
   - httproutefilter-registration.yaml
   - network-registration.yaml
-  - networkpolicy-registration.yaml
   - securitypolicy-registration.yaml
   - trafficprotectionpolicy-registration.yaml