Merge pull request kubernetes#81424 from xichengliudui/fix190915

fix shellcheck failures in hack/test-integration.sh and hack/verify-t…

Author: k8s-ci-robot

hack/.shellcheck_failures

@@ -16,5 +16,4 @@
 ./cluster/test-e2e.sh
 ./cluster/validate-cluster.sh
 ./hack/lib/test.sh
-./hack/test-integration.sh
 ./test/images/image-util.sh

hack/test-integration.sh

@@ -20,8 +20,6 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
-
 echo "$0 has been replaced by 'make test-integration'"
 echo
 echo "The following invocation will run all integration tests: "