aws docs: volume expansion is setup by default and require no action …

…any more

docs/hub-deployment-guide/new-cluster/new-cluster.md

@@ -712,17 +712,3 @@ kubectl get node
 It should show you the provisioned node on the cluster if everything works out ok.
 ````
 `````
-
-## AWS only: Expandable storage class
-
-The default storage class that is created when we deploy a cluster to AWS does permit auto-expansion of persistent volumes.
-This can cause problems when we want to expand the size of a disk, say used by Prometheus to store metrics data.
-We will therefore patch the default storage class to permite auto-expansion.
-
-```bash
-# Gain k8s access to the cluster
-deployer use-cluster-credentials $CLUSTER_NAME
-
-# Patch the storage class
-kubectl patch storageclass gp2 --patch '{\"allowVolumeExpansion\": true}'
-```