Remove hack/upgrade-e2e-test.sh.

hack/upgrade-e2e-test.sh

@@ -1,27 +0,0 @@
-#!/bin/bash
-
-# Copyright 2014 The Kubernetes Authors All rights reserved.
-#
-# 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.
-
-# This does a checked upgrade of the MASTER using the locally built release, then runs e2e.
-echo "Running the checked master upgrade."
-go run "$(dirname $0)/e2e.go" -build -up -v -test -test_args='--ginkgo.focus=Cluster\sUpgrade.*gce-upgrade' -check_version_skew=false
-if [ $? -eq 0 ]; then
-    echo "Master upgrade complete. Running e2e on the upgraded cluster."
-    go run "$(dirname $0)/e2e.go" -v -version="" -test -check_version_skew=false
-else
-    echo "Master upgrade failed."
-fi
-
-exit $?