Upgrade to kubernetes 1.9.2, Part 2: Non-Vendor changes.

- k8s.io/kubernetes/pkg/api/v1/helper -> k8s.io/kubernets/pkg/apis/core/v1/helper
- Remove Scheme.DeepCopy, see kubernetes/kubernetes#53525
- Move global scheme to pkg/api/legacyscheme, see kubernetes/kubernetes#53984
- Add hack scripts to update CRD deepcopy generated files to 1.9.2.

provisioner/pkg/discovery/discovery.go

@@ -27,7 +27,7 @@ import (
 	esUtil "github.com/kubernetes-incubator/external-storage/lib/util"
 	"github.com/kubernetes-incubator/external-storage/local-volume/provisioner/pkg/deleter"
 	"k8s.io/api/core/v1"
-	"k8s.io/kubernetes/pkg/api/v1/helper"
+	"k8s.io/kubernetes/pkg/apis/core/v1/helper"
 )
 
 // Discoverer finds available volumes and creates PVs for them

provisioner/pkg/discovery/discovery_test.go

@@ -28,7 +28,7 @@ import (
 
 	"k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/kubernetes/pkg/api/v1/helper"
+	"k8s.io/kubernetes/pkg/apis/core/v1/helper"
 	"k8s.io/kubernetes/pkg/util/mount"
 	"reflect"
 )