Remove EndpointSliceNodeName feature gate logic

- feature gate has graduated to GA and will always be enabled, so no
 longer need to check if enabled

pkg/proxy/endpointslicecache.go

@@ -23,13 +23,11 @@ import (
 	"strings"
 	"sync"
 
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	discovery "k8s.io/api/discovery/v1beta1"
 	"k8s.io/apimachinery/pkg/types"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/tools/record"
 	"k8s.io/klog/v2"
-	"k8s.io/kubernetes/pkg/features"
 	utilproxy "k8s.io/kubernetes/pkg/proxy/util"
 	utilnet "k8s.io/utils/net"
 )
@@ -136,9 +134,7 @@ func newEndpointSliceInfo(endpointSlice *discovery.EndpointSlice, remove bool) *
 				Terminating: endpoint.Conditions.Terminating != nil && *endpoint.Conditions.Terminating,
 			}
 
-			if utilfeature.DefaultFeatureGate.Enabled(features.EndpointSliceNodeName) {
-				epInfo.NodeName = endpoint.NodeName
-			}
+			epInfo.NodeName = endpoint.NodeName
 
 			esInfo.Endpoints = append(esInfo.Endpoints, epInfo)
 		}