Merge pull request #61432 from filbranden/killrkt1

Automatic merge from submit-queue (batch tested with PRs 61904, 61565, 61401, 61432, 61772). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Remove rktnetes code

**What this PR does / why we need it**:
rktnetes is scheduled to be deprecated in 1.10 (#53601). According to the deprecation policy for beta CLI and flags, we can remove the feature in 1.11.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #58721

**Special notes for your reviewer**:

**Release note**:

```release-note
Removed rknetes code, which was deprecated in 1.10.
```

/assign @yujuhong 
/hold

Hold until the end of the freeze.

hack/local-up-cluster.sh

@@ -205,23 +205,6 @@ else
     echo "skipped the build."
 fi
 
-function test_rkt {
-    if [[ -n "${RKT_PATH}" ]]; then
-      ${RKT_PATH} list 2> /dev/null 1> /dev/null
-      if [ "$?" != "0" ]; then
-        echo "Failed to successfully run 'rkt list', please verify that ${RKT_PATH} is the path of rkt binary."
-        exit 1
-      fi
-    else
-      rkt list 2> /dev/null 1> /dev/null
-      if [ "$?" != "0" ]; then
-        echo "Failed to successfully run 'rkt list', please verify that rkt is in \$PATH."
-        exit 1
-      fi
-    fi
-}
-
-
 # Shut down anyway if there's an error.
 set +e
 
@@ -246,8 +229,6 @@ LOG_DIR=${LOG_DIR:-"/tmp"}
 CONTAINER_RUNTIME=${CONTAINER_RUNTIME:-"docker"}
 CONTAINER_RUNTIME_ENDPOINT=${CONTAINER_RUNTIME_ENDPOINT:-""}
 IMAGE_SERVICE_ENDPOINT=${IMAGE_SERVICE_ENDPOINT:-""}
-RKT_PATH=${RKT_PATH:-""}
-RKT_STAGE1_IMAGE=${RKT_STAGE1_IMAGE:-""}
 CHAOS_CHANCE=${CHAOS_CHANCE:-0.0}
 CPU_CFS_QUOTA=${CPU_CFS_QUOTA:-true}
 ENABLE_HOSTPATH_PROVISIONER=${ENABLE_HOSTPATH_PROVISIONER:-"false"}
@@ -735,8 +716,6 @@ function start_kubelet {
         --vmodule="${LOG_SPEC}" \
         --chaos-chance="${CHAOS_CHANCE}" \
         --container-runtime="${CONTAINER_RUNTIME}" \
-        --rkt-path="${RKT_PATH}" \
-        --rkt-stage1-image="${RKT_STAGE1_IMAGE}" \
         --hostname-override="${HOSTNAME_OVERRIDE}" \
         ${cloud_config_arg} \
         --address="${KUBELET_HOST}" \
@@ -966,10 +945,6 @@ if [ "${CONTAINER_RUNTIME}" == "docker" ] && ! kube::util::ensure_docker_daemon_
   exit 1
 fi
 
-if [[ "${CONTAINER_RUNTIME}" == "rkt" ]]; then
-  test_rkt
-fi
-
 if [[ "${START_MODE}" != "kubeletonly" ]]; then
   test_apiserver_off
 fi