remove make rule for test-e2e-kubeadm

this target depended on a broken binary and is clearly unused

kubeadm e2e development should be done with: https://github.com/kubernetes/kubeadm/tree/main/kinder

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

@@ -1,64 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright 2019 The Kubernetes Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -o errexit
-set -o nounset
-set -o pipefail
-
-KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/../..
-source "${KUBE_ROOT}/hack/lib/init.sh"
-
-focus=${FOCUS:-""}
-skip=${SKIP:-""}
-parallelism=${PARALLELISM:-""}
-artifacts=${ARTIFACTS:-"/tmp/_artifacts/$(date +%y%m%dT%H%M%S)"}
-run_until_failure=${RUN_UNTIL_FAILURE:-"false"}
-build=${BUILD:-"true"}
-
-# Parse the flags to pass to ginkgo
-ginkgoflags=""
-if [[ ${parallelism} != "" ]]; then
-  ginkgoflags="${ginkgoflags} -nodes=${parallelism} "
-else
-  ginkgoflags="${ginkgoflags} -p "
-fi
-
-if [[ ${focus} != "" ]]; then
-  ginkgoflags="${ginkgoflags} -focus=\"${focus}\" "
-fi
-
-if [[ ${skip} != "" ]]; then
-  ginkgoflags="${ginkgoflags} -skip=\"${skip}\" "
-fi
-
-if [[ ${run_until_failure} != "false" ]]; then
-  ginkgoflags="${ginkgoflags} -untilItFails=${run_until_failure} "
-fi
-
-# Setup the directory to copy test artifacts (logs, junit.xml, etc) from remote host to local host
-if [[ ! -d "${artifacts}" ]]; then
-  echo "Creating artifacts directory at ${artifacts}"
-  mkdir -p "${artifacts}"
-fi
-echo "Test artifacts will be written to ${artifacts}"
-
-# Test
-kube::golang::verify_go_version
-
-go run test/e2e_kubeadm/runner/local/run_local.go \
-  --ginkgo-flags="${ginkgoflags}" \
-  --test-flags="--provider=skeleton --report-dir=${artifacts}" \
-  --build="${build}" 2>&1 | tee -i "${artifacts}/build-log.txt"