Revert "remove dup pkg and update reference"

This reverts commit 93be3f7735.

Revert "update vendor kube-openapi"

This reverts commit 006f80e35d.

vendor/k8s.io/kube-openapi/pkg/util/proto/doc.go

@@ -1,19 +0,0 @@
-/*
-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.
-*/
-
-// Package proto is a collection of libraries for parsing and indexing the type definitions.
-// The openapi spec contains the object model definitions and extensions metadata.
-package proto