drop obsolete verify-util-pkg.sh

https://github.com/kubernetes/test-infra/pull/21037 obsoletes this

pkg/util/BUILD

@@ -46,10 +46,3 @@ filegroup(
     ],
     tags = ["automanaged"],
 )
-
-sh_test(
-    name = "verify-util-pkg",
-    size = "small",
-    srcs = ["verify-util-pkg.sh"],
-    data = glob(["*.go"]),
-)

pkg/util/verify-util-pkg.sh

@@ -1,48 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright 2017 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.
-
-# verify-util-pkg.sh checks whether *.go except doc.go in pkg/util have been moved into
-# sub-pkgs, see issue #15634.
-
-set -o errexit
-set -o nounset
-set -o pipefail
-
-BASH_DIR=$(dirname "${BASH_SOURCE[0]}")
-
-find_go_files() {
-  find . -maxdepth 1 -not \( \
-      \( \
-        -wholename './doc.go' \
-      \) -prune \
-    \) -name '*.go'
-}
-
-ret=0
-
-pushd "${BASH_DIR}" > /dev/null
-  for path in $(find_go_files); do
-    file=$(basename "$path")
-    echo "Found pkg/util/${file}, but should be moved into util sub-pkgs." 1>&2
-    ret=1
-  done
-popd > /dev/null
-
-if [[ ${ret} -gt 0 ]]; then
-  exit ${ret}
-fi
-
-echo "Util Package Verified."