vendor: remove dep and use vndr

Signed-off-by: Antonio Murdaca <runcom@redhat.com>

vendor/k8s.io/kubernetes/pkg/util/net/sets/doc.go

@@ -1,28 +0,0 @@
-/*
-Copyright 2016 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.
-*/
-
-// This package contains hand-coded set implementations that should be similar
-// to the autogenerated ones in pkg/util/sets.
-// We can't simply use net.IPNet as a map-key in Go (because it contains a
-// []byte).
-// We could use the same workaround we use here (a string representation as the
-// key) to autogenerate sets.  If we do that, or decide on an alternate
-// approach, we should replace the implementations in this package with the
-// autogenerated versions.
-// It is expected that callers will alias this import as "netsets" i.e. import
-// netsets "k8s.io/kubernetes/pkg/util/net/sets"
-
-package sets