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/report_value.go

@@ -1,121 +0,0 @@
-// Copyright 2019, 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 cmp
-
-import "reflect"
-
-// valueNode represents a single node within a report, which is a
-// structured representation of the value tree, containing information
-// regarding which nodes are equal or not.
-type valueNode struct {
-	parent *valueNode
-
-	Type   reflect.Type
-	ValueX reflect.Value
-	ValueY reflect.Value
-
-	// NumSame is the number of leaf nodes that are equal.
-	// All descendants are equal only if NumDiff is 0.
-	NumSame int
-	// NumDiff is the number of leaf nodes that are not equal.
-	NumDiff int
-	// NumIgnored is the number of leaf nodes that are ignored.
-	NumIgnored int
-	// NumCompared is the number of leaf nodes that were compared
-	// using an Equal method or Comparer function.
-	NumCompared int
-	// NumTransformed is the number of non-leaf nodes that were transformed.
-	NumTransformed int
-	// NumChildren is the number of transitive descendants of this node.
-	// This counts from zero; thus, leaf nodes have no descendants.
-	NumChildren int
-	// MaxDepth is the maximum depth of the tree. This counts from zero;
-	// thus, leaf nodes have a depth of zero.
-	MaxDepth int
-
-	// Records is a list of struct fields, slice elements, or map entries.
-	Records []reportRecord // If populated, implies Value is not populated
-
-	// Value is the result of a transformation, pointer indirect, of
-	// type assertion.
-	Value *valueNode // If populated, implies Records is not populated
-
-	// TransformerName is the name of the transformer.
-	TransformerName string // If non-empty, implies Value is populated
-}
-type reportRecord struct {
-	Key   reflect.Value // Invalid for slice element
-	Value *valueNode
-}
-
-func (parent *valueNode) PushStep(ps PathStep) (child *valueNode) {
-	vx, vy := ps.Values()
-	child = &valueNode{parent: parent, Type: ps.Type(), ValueX: vx, ValueY: vy}
-	switch s := ps.(type) {
-	case StructField:
-		assert(parent.Value == nil)
-		parent.Records = append(parent.Records, reportRecord{Key: reflect.ValueOf(s.Name()), Value: child})
-	case SliceIndex:
-		assert(parent.Value == nil)
-		parent.Records = append(parent.Records, reportRecord{Value: child})
-	case MapIndex:
-		assert(parent.Value == nil)
-		parent.Records = append(parent.Records, reportRecord{Key: s.Key(), Value: child})
-	case Indirect:
-		assert(parent.Value == nil && parent.Records == nil)
-		parent.Value = child
-	case TypeAssertion:
-		assert(parent.Value == nil && parent.Records == nil)
-		parent.Value = child
-	case Transform:
-		assert(parent.Value == nil && parent.Records == nil)
-		parent.Value = child
-		parent.TransformerName = s.Name()
-		parent.NumTransformed++
-	default:
-		assert(parent == nil) // Must be the root step
-	}
-	return child
-}
-
-func (r *valueNode) Report(rs Result) {
-	assert(r.MaxDepth == 0) // May only be called on leaf nodes
-
-	if rs.ByIgnore() {
-		r.NumIgnored++
-	} else {
-		if rs.Equal() {
-			r.NumSame++
-		} else {
-			r.NumDiff++
-		}
-	}
-	assert(r.NumSame+r.NumDiff+r.NumIgnored == 1)
-
-	if rs.ByMethod() {
-		r.NumCompared++
-	}
-	if rs.ByFunc() {
-		r.NumCompared++
-	}
-	assert(r.NumCompared <= 1)
-}
-
-func (child *valueNode) PopStep() (parent *valueNode) {
-	if child.parent == nil {
-		return nil
-	}
-	parent = child.parent
-	parent.NumSame += child.NumSame
-	parent.NumDiff += child.NumDiff
-	parent.NumIgnored += child.NumIgnored
-	parent.NumCompared += child.NumCompared
-	parent.NumTransformed += child.NumTransformed
-	parent.NumChildren += child.NumChildren + 1
-	if parent.MaxDepth < child.MaxDepth+1 {
-		parent.MaxDepth = child.MaxDepth + 1
-	}
-	return parent
-}