upgrade k8s libs to 1.18.4

scripts/validate/check_version.sh

@@ -1,38 +0,0 @@
-#!/bin/bash
-set -euo pipefail
-
-echo "Checking kubernetes version replacement / pinning"
-
-readonly kubeversion=$(go list -m -f '{{.Version}}' k8s.io/kubernetes)
-
-if [[ "${kubeversion}" =~ '^v.*' ]]; then
-	echo "Kube Version: ${kubeversion} in unexpected format, must start with v"
-	exit 1
-fi
-
-echo "Found kubernetes version: ${kubeversion}"
-
-# We postfix the tag to search for with ^{}, as we want the annotated tag
-readonly sha=$(git ls-remote --tags git@github.com:kubernetes/kubernetes.git "${kubeversion}^{}"|cut -f1 -d$'\t')
-
-if [[ ! "${sha}" =~ ^[0-9a-f]{40}$ ]]; then
-	echo "Kube Sha: ${sha} in unexpected format"
-	exit 1
-fi
-
-echo "Found sha for kubernetes version ${kubeversion}: ${sha}"
-# TODO: Check direct deps
-# Humans should check the versions reference directly (i.e. bits under require) those should either read
-# kubeversion, or v0.0.0
-
-
-readonly short_sha=$(echo $sha|cut -b1-12)
-readonly non_matching_versions=$(go list -m -json k8s.io/...|jq --arg short_sha "${short_sha}" 'select(.Replace != null) | select(.Replace.Version[-12:] != $short_sha)')
-
-
-if [[ ! -z "${non_matching_versions}" ]]; then
-	echo "Found non-matching versions: ${non_matching_versions}"
-	exit 1
-fi
-
-