Remove HyperVContainer

pkg/features/kube_features.go

@@ -173,12 +173,6 @@ const (
 	// Implement IPVS-based in-cluster service load balancing
 	SupportIPVSProxyMode utilfeature.Feature = "SupportIPVSProxyMode"
 
-	// owner: @feiskyer
-	// alpha: v1.10
-	//
-	// Enable Hyper-V containers on Windows
-	HyperVContainer utilfeature.Feature = "HyperVContainer"
-
 	// owner: @k82cn
 	// beta: v1.12
 	//
@@ -347,7 +341,6 @@ var defaultKubernetesFeatureGates = map[utilfeature.Feature]utilfeature.FeatureS
 	BlockVolume:                                 {Default: true, PreRelease: utilfeature.Beta},
 	StorageObjectInUseProtection:                {Default: true, PreRelease: utilfeature.GA},
 	SupportIPVSProxyMode:                        {Default: true, PreRelease: utilfeature.GA},
-	HyperVContainer:                             {Default: false, PreRelease: utilfeature.Alpha},
 	ScheduleDaemonSetPods:                       {Default: true, PreRelease: utilfeature.Beta},
 	TokenRequest:                                {Default: true, PreRelease: utilfeature.Beta},
 	TokenRequestProjection:                      {Default: true, PreRelease: utilfeature.Beta},

pkg/kubelet/apis/well_known_annotations_windows.go

@@ -18,11 +18,6 @@ limitations under the License.
 
 package apis
 
-import (
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
-	"k8s.io/kubernetes/pkg/features"
-)
-
 const (
 	// HypervIsolationAnnotationKey and HypervIsolationValue are used to run windows containers with hyperv isolation.
 	// Refer https://aka.ms/hyperv-container.
@@ -32,10 +27,5 @@ const (
 
 // ShouldIsolatedByHyperV returns true if a windows container should be run with hyperv isolation.
 func ShouldIsolatedByHyperV(annotations map[string]string) bool {
-	if !utilfeature.DefaultFeatureGate.Enabled(features.HyperVContainer) {
-		return false
-	}
-
-	v, ok := annotations[HypervIsolationAnnotationKey]
-	return ok && v == HypervIsolationValue
+	return false
 }