Merge pull request #385 from pohly/remove-kubernetes-version

.prow.sh: remove hard-coded Kubernetes version

.prow.sh

@@ -18,13 +18,6 @@
 # Only these tests make sense for csi-sanity.
 : ${CSI_PROW_TESTS:="unit sanity"}
 
-# What matters for csi-sanity is the version of the hostpath driver
-# that we test against, not the version of Kubernetes that it runs on.
-# We pick the latest stable Kubernetes here because the corresponding
-# deployment has the current driver. v1.0.1 (from the current 1.13
-# deployment) does not pass csi-sanity testing.
-: ${CSI_PROW_KUBERNETES_VERSION:=1.17.0}
-
 # This repo supports and wants sanity testing.
 CSI_PROW_TESTS_SANITY=sanity