Vendor: Update k8s version

Signed-off-by: Michał Żyłowski <michal.zylowski@intel.com>

vendor/k8s.io/kubernetes/cluster/vagrant/util.sh

@@ -104,17 +104,6 @@ function verify-prereqs {
   export USING_KUBE_SCRIPTS=true
 }
 
-# Create a temp dir that'll be deleted at the end of this bash session.
-#
-# Vars set:
-#   KUBE_TEMP
-function ensure-temp-dir {
-  if [[ -z ${KUBE_TEMP-} ]]; then
-    export KUBE_TEMP=$(mktemp -d -t kubernetes.XXXXXX)
-    trap 'rm -rf "${KUBE_TEMP}"' EXIT
-  fi
-}
-
 # Create a set of provision scripts for the master and each of the nodes
 function create-provision-scripts {
   ensure-temp-dir