diff --git a/pkg/features/kube_features.go b/pkg/features/kube_features.go
index 5a80a74a6a1..433cf48939c 100644
--- a/pkg/features/kube_features.go
+++ b/pkg/features/kube_features.go
@@ -440,14 +440,6 @@ const (
 	// DaemonSets allow workloads to maintain availability during update per node
 	DaemonSetUpdateSurge featuregate.Feature = "DaemonSetUpdateSurge"
 
-	// owner: @wojtek-t
-	// alpha: v1.18
-	// beta:  v1.19
-	// ga:    v1.21
-	//
-	// Enables a feature to make secrets and configmaps data immutable.
-	ImmutableEphemeralVolumes featuregate.Feature = "ImmutableEphemeralVolumes"
-
 	// owner: @bart0sh
 	// alpha: v1.18
 	// beta: v1.19
@@ -909,7 +901,6 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 	WindowsEndpointSliceProxying:                   {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.25
 	PodDisruptionBudget:                            {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.25
 	DaemonSetUpdateSurge:                           {Default: true, PreRelease: featuregate.Beta},                    // on by default in 1.22
-	ImmutableEphemeralVolumes:                      {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.24
 	HugePageStorageMediumSize:                      {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.24
 	DownwardAPIHugePages:                           {Default: true, PreRelease: featuregate.Beta},                    // on by default in 1.22
 	AnyVolumeDataSource:                            {Default: false, PreRelease: featuregate.Alpha},