Remove the invalid node.UID

pkg/exporters/k8sexporter/problemclient/problem_client.go

@@ -27,7 +27,6 @@ import (
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
-	"k8s.io/apimachinery/pkg/types"
 	clientset "k8s.io/client-go/kubernetes"
 	typedcorev1 "k8s.io/client-go/kubernetes/typed/core/v1"
 	"k8s.io/client-go/tools/record"
@@ -160,7 +159,6 @@ func getNodeRef(namespace, nodeName string) *v1.ObjectReference {
 		APIVersion: "v1",
 		Kind:       "Node",
 		Name:       nodeName,
-		UID:        types.UID(nodeName),
 		Namespace:  namespace,
 	}
 }