chore: Cleanup deprecated label approach

pkg/webhook/controlplane/ensurer.go

@@ -22,7 +22,6 @@ import (
 	v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
 	extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
 	"github.com/gardener/gardener/pkg/component/nodemanagement/machinecontrollermanager"
-	gutil "github.com/gardener/gardener/pkg/utils/gardener"
 	imagevectorutils "github.com/gardener/gardener/pkg/utils/imagevector"
 	versionutils "github.com/gardener/gardener/pkg/utils/version"
 	"github.com/go-logr/logr"
@@ -94,10 +93,6 @@ func (e *ensurer) EnsureKubeAPIServerDeployment(ctx context.Context, gctx gconte
 	template := &newObj.Spec.Template
 	ps := &template.Spec
 
-	// TODO: This label approach is deprecated and no longer needed in the future. Remove it as soon as gardener/gardener@v1.75 has been released.
-	metav1.SetMetaDataLabel(&newObj.Spec.Template.ObjectMeta, gutil.NetworkPolicyLabel(aws.CSISnapshotValidationName, 443), v1beta1constants.LabelNetworkPolicyAllowed)
-	metav1.SetMetaDataLabel(&newObj.Spec.Template.ObjectMeta, gutil.NetworkPolicyLabel(aws.AWSLoadBalancerControllerName+"-webhook-service", 9443), v1beta1constants.LabelNetworkPolicyAllowed)
-
 	cluster, err := gctx.GetCluster(ctx)
 	if err != nil {
 		return err

pkg/webhook/controlplane/ensurer_test.go

@@ -839,8 +839,6 @@ func checkKubeAPIServerDeployment(dep *appsv1.Deployment, k8sVersion string) {
 	Expect(c.Env).NotTo(ContainElement(accessKeyIDEnvVar))
 	Expect(c.Env).NotTo(ContainElement(secretAccessKeyEnvVar))
 	Expect(dep.Spec.Template.Annotations).To(BeNil())
-	Expect(dep.Spec.Template.Labels).To(HaveKeyWithValue("networking.resources.gardener.cloud/to-csi-snapshot-validation-tcp-443", "allowed"))
-	Expect(dep.Spec.Template.Labels).To(HaveKeyWithValue("networking.resources.gardener.cloud/to-aws-load-balancer-controller-webhook-service-tcp-9443", "allowed"))
 }
 
 func checkKubeControllerManagerDeployment(dep *appsv1.Deployment, k8sVersion string) {