fix: lint error

pkg/server/suite_test.go

@@ -31,7 +31,6 @@ import (
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/kubernetes/scheme"
 	ctrl "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
@@ -64,7 +63,6 @@ var (
 // var cfg *rest.Config
 var k8sClient client.Client
 var testEnv *envtest.Environment
-var kubeClient *kubernetes.Clientset
 
 func TestServer(t *testing.T) {
 	RegisterFailHandler(Fail)