Update custom-metrics-apiserver and metrics-server

vendor/sigs.k8s.io/structured-merge-diff/schema/doc.go

@@ -1,28 +0,0 @@
-/*
-Copyright 2018 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 schema defines a targeted schema language which allows one to
-// represent all the schema information necessary to perform "structured"
-// merges and diffs.
-//
-// Due to the targeted nature of the data model, the schema language can fit in
-// just a few hundred lines of go code, making it much more understandable and
-// concise than e.g. OpenAPI.
-//
-// This schema was derived by observing the API objects used by Kubernetes, and
-// formalizing a model which allows certain operations ("apply") to be more
-// well defined. It is currently missing one feature: one-of ("unions").
-package schema