Merge pull request #38150 from Random-Liu/remote-setup-node

Automatic merge from submit-queue (batch tested with PRs 38149, 38156, 38150)

Node E2E: Remove setup-node option

This PR removes `setup-node` option, because:
* It is misleading. `setup-node` doesn't really setup the node, test framework will only put current user into docker user group when it is specified.
* It is not necessary anymore. Because we always run node e2e test as root now, we don't need to do this anymore.

This is a minor cleanup preparing for my test framework refactoring work. Will send out the refactor PR later.

/cc @kubernetes/sig-node

hack/make-rules/test-e2e-node.sh

@@ -128,7 +128,7 @@ if [ $remote = true ] ; then
     --zone="$zone" --project="$project" --gubernator="$gubernator" \
     --hosts="$hosts" --images="$images" --cleanup="$cleanup" \
     --results-dir="$artifacts" --ginkgo-flags="$ginkgoflags" \
-    --image-project="$image_project" --instance-name-prefix="$instance_prefix" --setup-node="true" \
+    --image-project="$image_project" --instance-name-prefix="$instance_prefix" \
     --delete-instances="$delete_instances" --test_args="$test_args" --instance-metadata="$metadata" \
     2>&1 | tee -i "${artifacts}/build-log.txt"
   exit $?

hack/verify-flags/known-flags.txt

@@ -545,7 +545,6 @@ service-node-ports
 service-overrides
 service-sync-period
 session-affinity
-setup-node
 show-all
 show-events
 show-kind