Remove storetheindex as a tenant of production EKS cluster

Remove storetheindex as a tenant of production EKS cluster
and scale down the controllers that are no longer in use.

Part of moving off AWS. After this, the only remaining practical infra
on AWS is the CloudFront caching (along with the necessary routing and
ELBs)

deploy/manifests/prod/us-east-2/cluster/aws-ebs-csi-driver/kustomization.yaml

@@ -6,3 +6,7 @@ resources:
 
 patchesStrategicMerge:
   - patch.yaml
+
+replicas:
+  - count: 0
+    name: ebs-csi-controller

deploy/manifests/prod/us-east-2/cluster/external-snapshotter/kustomization.yaml

@@ -3,3 +3,7 @@ kind: Kustomization
 
 resources:
   - ../../../../base/external-snapshotter
+
+replicas:
+  - count: 0
+    name: snapshot-controller

deploy/manifests/prod/us-east-2/cluster/ingress-nginx/kustomization.yaml

@@ -10,4 +10,4 @@ patchesStrategicMerge:
 
 replicas:
   - name: ingress-nginx-controller
-    count: 2
+    count: 0

deploy/manifests/prod/us-east-2/cluster/kustomization.yaml

@@ -7,10 +7,8 @@ resources:
   - flux-system
   - external-dns
   - cert-manager
-  - storetheindex
   - cluster-autoscaler
   - monitoring
   - aws-ebs-csi-driver
   - promtail
   - external-snapshotter
-  - ../../../base/foundationdb/crds