Add storageclass delete to 'make rebuild-cluster' (#323)

Author: sebrandon1

Makefile

@@ -51,6 +51,7 @@ rebuild-cluster: delete-cluster
 	./scripts/deploy-k8s-cluster.sh
 	./scripts/deploy-calico.sh
 	./scripts/preload-images.sh
+	./scripts/delete-standard-storageclass.sh
 
 delete-cluster:
 	./scripts/delete-k8s-cluster.sh