Downgrade Kubernetes vendor version

Multus community decide that multus support the Kubernetes that
Kubernetes community supports, so changed vendor code to the
oldest version of currently supported.

vendor/github.com/google/go-cmp/cmp/internal/function/func.go

@@ -1,99 +0,0 @@
-// Copyright 2017, The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE.md file.
-
-// Package function provides functionality for identifying function types.
-package function
-
-import (
-	"reflect"
-	"regexp"
-	"runtime"
-	"strings"
-)
-
-type funcType int
-
-const (
-	_ funcType = iota
-
-	tbFunc  // func(T) bool
-	ttbFunc // func(T, T) bool
-	trbFunc // func(T, R) bool
-	tibFunc // func(T, I) bool
-	trFunc  // func(T) R
-
-	Equal             = ttbFunc // func(T, T) bool
-	EqualAssignable   = tibFunc // func(T, I) bool; encapsulates func(T, T) bool
-	Transformer       = trFunc  // func(T) R
-	ValueFilter       = ttbFunc // func(T, T) bool
-	Less              = ttbFunc // func(T, T) bool
-	ValuePredicate    = tbFunc  // func(T) bool
-	KeyValuePredicate = trbFunc // func(T, R) bool
-)
-
-var boolType = reflect.TypeOf(true)
-
-// IsType reports whether the reflect.Type is of the specified function type.
-func IsType(t reflect.Type, ft funcType) bool {
-	if t == nil || t.Kind() != reflect.Func || t.IsVariadic() {
-		return false
-	}
-	ni, no := t.NumIn(), t.NumOut()
-	switch ft {
-	case tbFunc: // func(T) bool
-		if ni == 1 && no == 1 && t.Out(0) == boolType {
-			return true
-		}
-	case ttbFunc: // func(T, T) bool
-		if ni == 2 && no == 1 && t.In(0) == t.In(1) && t.Out(0) == boolType {
-			return true
-		}
-	case trbFunc: // func(T, R) bool
-		if ni == 2 && no == 1 && t.Out(0) == boolType {
-			return true
-		}
-	case tibFunc: // func(T, I) bool
-		if ni == 2 && no == 1 && t.In(0).AssignableTo(t.In(1)) && t.Out(0) == boolType {
-			return true
-		}
-	case trFunc: // func(T) R
-		if ni == 1 && no == 1 {
-			return true
-		}
-	}
-	return false
-}
-
-var lastIdentRx = regexp.MustCompile(`[_\p{L}][_\p{L}\p{N}]*$`)
-
-// NameOf returns the name of the function value.
-func NameOf(v reflect.Value) string {
-	fnc := runtime.FuncForPC(v.Pointer())
-	if fnc == nil {
-		return "<unknown>"
-	}
-	fullName := fnc.Name() // e.g., "long/path/name/mypkg.(*MyType).(long/path/name/mypkg.myMethod)-fm"
-
-	// Method closures have a "-fm" suffix.
-	fullName = strings.TrimSuffix(fullName, "-fm")
-
-	var name string
-	for len(fullName) > 0 {
-		inParen := strings.HasSuffix(fullName, ")")
-		fullName = strings.TrimSuffix(fullName, ")")
-
-		s := lastIdentRx.FindString(fullName)
-		if s == "" {
-			break
-		}
-		name = s + "." + name
-		fullName = strings.TrimSuffix(fullName, s)
-
-		if i := strings.LastIndexByte(fullName, '('); inParen && i >= 0 {
-			fullName = fullName[:i]
-		}
-		fullName = strings.TrimSuffix(fullName, ".")
-	}
-	return strings.TrimSuffix(name, ".")
-}