Update go dependencies (#2234)

vendor/k8s.io/apimachinery/pkg/util/intstr/intstr.go

@@ -24,9 +24,6 @@ import (
 	"strconv"
 	"strings"
 
-	openapi "k8s.io/kube-openapi/pkg/common"
-
-	"github.com/go-openapi/spec"
 	"github.com/golang/glog"
 	"github.com/google/gofuzz"
 )
@@ -120,16 +117,15 @@ func (intstr IntOrString) MarshalJSON() ([]byte, error) {
 	}
 }
 
-func (_ IntOrString) OpenAPIDefinition() openapi.OpenAPIDefinition {
-	return openapi.OpenAPIDefinition{
-		Schema: spec.Schema{
-			SchemaProps: spec.SchemaProps{
-				Type:   []string{"string"},
-				Format: "int-or-string",
-			},
-		},
-	}
-}
+// OpenAPISchemaType is used by the kube-openapi generator when constructing
+// the OpenAPI spec of this type.
+//
+// See: https://github.com/kubernetes/kube-openapi/tree/master/pkg/generators
+func (_ IntOrString) OpenAPISchemaType() []string { return []string{"string"} }
+
+// OpenAPISchemaFormat is used by the kube-openapi generator when constructing
+// the OpenAPI spec of this type.
+func (_ IntOrString) OpenAPISchemaFormat() string { return "int-or-string" }
 
 func (intstr *IntOrString) Fuzz(c fuzz.Continue) {
 	if intstr == nil {