fix shellcheck in test-smoke.sh and test-network.sh

cluster/test-network.sh

@@ -25,6 +25,5 @@ set -o nounset
 set -o pipefail
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
-KUBE_CONFIG_FILE="config-default.sh"
 
-${KUBE_ROOT}/hack/ginkgo-e2e.sh --ginkgo.focus=Networking
+"${KUBE_ROOT}/hack/ginkgo-e2e.sh" --ginkgo.focus=Networking

cluster/test-smoke.sh

@@ -25,8 +25,6 @@ set -o pipefail
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 
-TEST_ARGS="$@"
-
 SMOKE_TEST_FOCUS_REGEX="Guestbook.application"
 
-exec "${KUBE_ROOT}/cluster/test-e2e.sh" -ginkgo.focus="${SMOKE_TEST_FOCUS_REGEX}" ${TEST_ARGS}
+exec "${KUBE_ROOT}/cluster/test-e2e.sh" -ginkgo.focus="${SMOKE_TEST_FOCUS_REGEX}" "$@"

hack/.shellcheck_failures

@@ -20,8 +20,6 @@
 ./cluster/pre-existing/util.sh
 ./cluster/restore-from-backup.sh
 ./cluster/test-e2e.sh
-./cluster/test-network.sh
-./cluster/test-smoke.sh
 ./cluster/validate-cluster.sh
 ./hack/cherry_pick_pull.sh
 ./hack/ginkgo-e2e.sh