updated vendor

vendor/k8s.io/kube-openapi/pkg/validation/spec/ref.go

@@ -16,10 +16,6 @@ package spec
 
 import (
 	"encoding/json"
-	"net/http"
-	"os"
-	"path/filepath"
-
 	"github.com/go-openapi/jsonreference"
 
 	"k8s.io/kube-openapi/pkg/internal"
@@ -56,52 +52,6 @@ func (r *Ref) RemoteURI() string {
 	return u.String()
 }
 
-// IsValidURI returns true when the url the ref points to can be found
-func (r *Ref) IsValidURI(basepaths ...string) bool {
-	if r.String() == "" {
-		return true
-	}
-
-	v := r.RemoteURI()
-	if v == "" {
-		return true
-	}
-
-	if r.HasFullURL {
-		rr, err := http.Get(v)
-		if err != nil {
-			return false
-		}
-
-		return rr.StatusCode/100 == 2
-	}
-
-	if !(r.HasFileScheme || r.HasFullFilePath || r.HasURLPathOnly) {
-		return false
-	}
-
-	// check for local file
-	pth := v
-	if r.HasURLPathOnly {
-		base := "."
-		if len(basepaths) > 0 {
-			base = filepath.Dir(filepath.Join(basepaths...))
-		}
-		p, e := filepath.Abs(filepath.ToSlash(filepath.Join(base, pth)))
-		if e != nil {
-			return false
-		}
-		pth = p
-	}
-
-	fi, err := os.Stat(filepath.ToSlash(pth))
-	if err != nil {
-		return false
-	}
-
-	return !fi.IsDir()
-}
-
 // Inherits creates a new reference from a parent and a child
 // If the child cannot inherit from the parent, an error is returned
 func (r *Ref) Inherits(child Ref) (*Ref, error) {