diff --git a/pkg/api/podsecuritypolicy/OWNERS b/pkg/api/podsecuritypolicy/OWNERS
deleted file mode 100644
index 59ee7e4862d..00000000000
--- a/pkg/api/podsecuritypolicy/OWNERS
+++ /dev/null
@@ -1,8 +0,0 @@
-# See the OWNERS docs at https://go.k8s.io/owners
-
-# approval on api packages bubbles to api-approvers
-reviewers:
-  - sig-auth-policy-approvers
-  - sig-auth-policy-reviewers
-labels:
-  - sig/auth
diff --git a/pkg/api/podsecuritypolicy/util.go b/pkg/api/podsecuritypolicy/util.go
deleted file mode 100644
index 0b31891dea0..00000000000
--- a/pkg/api/podsecuritypolicy/util.go
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
-Copyright 2018 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package podsecuritypolicy
-
-import (
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
-	"k8s.io/kubernetes/pkg/apis/policy"
-	"k8s.io/kubernetes/pkg/features"
-)
-
-// DropDisabledFields removes disabled fields from the pod security policy spec.
-// This should be called from PrepareForCreate/PrepareForUpdate for all resources containing a pod security policy spec.
-func DropDisabledFields(pspSpec, oldPSPSpec *policy.PodSecurityPolicySpec) {
-	if !utilfeature.DefaultFeatureGate.Enabled(features.ProcMountType) && !allowedProcMountTypesInUse(oldPSPSpec) {
-		pspSpec.AllowedProcMountTypes = nil
-	}
-}
-
-func allowedProcMountTypesInUse(oldPSPSpec *policy.PodSecurityPolicySpec) bool {
-	if oldPSPSpec == nil {
-		return false
-	}
-
-	if oldPSPSpec.AllowedProcMountTypes != nil {
-		return true
-	}
-
-	return false
-
-}
diff --git a/pkg/api/podsecuritypolicy/util_test.go b/pkg/api/podsecuritypolicy/util_test.go
deleted file mode 100644
index 7b86b669e59..00000000000
--- a/pkg/api/podsecuritypolicy/util_test.go
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
-Copyright 2018 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package podsecuritypolicy
-
-import (
-	"fmt"
-	"reflect"
-	"testing"
-
-	"github.com/google/go-cmp/cmp"
-
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
-	api "k8s.io/kubernetes/pkg/apis/core"
-	"k8s.io/kubernetes/pkg/apis/policy"
-	"k8s.io/kubernetes/pkg/features"
-)
-
-func TestDropAllowedProcMountTypes(t *testing.T) {
-	allowedProcMountTypes := []api.ProcMountType{api.UnmaskedProcMount}
-	scWithoutAllowedProcMountTypes := func() *policy.PodSecurityPolicySpec {
-		return &policy.PodSecurityPolicySpec{}
-	}
-	scWithAllowedProcMountTypes := func() *policy.PodSecurityPolicySpec {
-		return &policy.PodSecurityPolicySpec{
-			AllowedProcMountTypes: allowedProcMountTypes,
-		}
-	}
-
-	scInfo := []struct {
-		description              string
-		hasAllowedProcMountTypes bool
-		sc                       func() *policy.PodSecurityPolicySpec
-	}{
-		{
-			description:              "PodSecurityPolicySpec Without AllowedProcMountTypes",
-			hasAllowedProcMountTypes: false,
-			sc:                       scWithoutAllowedProcMountTypes,
-		},
-		{
-			description:              "PodSecurityPolicySpec With AllowedProcMountTypes",
-			hasAllowedProcMountTypes: true,
-			sc:                       scWithAllowedProcMountTypes,
-		},
-		{
-			description:              "is nil",
-			hasAllowedProcMountTypes: false,
-			sc:                       func() *policy.PodSecurityPolicySpec { return nil },
-		},
-	}
-
-	for _, enabled := range []bool{true, false} {
-		for _, oldPSPSpecInfo := range scInfo {
-			for _, newPSPSpecInfo := range scInfo {
-				oldPSPSpecHasAllowedProcMountTypes, oldPSPSpec := oldPSPSpecInfo.hasAllowedProcMountTypes, oldPSPSpecInfo.sc()
-				newPSPSpecHasAllowedProcMountTypes, newPSPSpec := newPSPSpecInfo.hasAllowedProcMountTypes, newPSPSpecInfo.sc()
-				if newPSPSpec == nil {
-					continue
-				}
-
-				t.Run(fmt.Sprintf("feature enabled=%v, old PodSecurityPolicySpec %v, new PodSecurityPolicySpec %v", enabled, oldPSPSpecInfo.description, newPSPSpecInfo.description), func(t *testing.T) {
-					defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ProcMountType, enabled)()
-
-					DropDisabledFields(newPSPSpec, oldPSPSpec)
-
-					// old PodSecurityPolicySpec should never be changed
-					if !reflect.DeepEqual(oldPSPSpec, oldPSPSpecInfo.sc()) {
-						t.Errorf("old PodSecurityPolicySpec changed: %v", cmp.Diff(oldPSPSpec, oldPSPSpecInfo.sc()))
-					}
-
-					switch {
-					case enabled || oldPSPSpecHasAllowedProcMountTypes:
-						// new PodSecurityPolicySpec should not be changed if the feature is enabled, or if the old PodSecurityPolicySpec had AllowedProcMountTypes
-						if !reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
-							t.Errorf("new PodSecurityPolicySpec changed: %v", cmp.Diff(newPSPSpec, newPSPSpecInfo.sc()))
-						}
-					case newPSPSpecHasAllowedProcMountTypes:
-						// new PodSecurityPolicySpec should be changed
-						if reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
-							t.Errorf("new PodSecurityPolicySpec was not changed")
-						}
-						// new PodSecurityPolicySpec should not have AllowedProcMountTypes
-						if !reflect.DeepEqual(newPSPSpec, scWithoutAllowedProcMountTypes()) {
-							t.Errorf("new PodSecurityPolicySpec had PodSecurityPolicySpecAllowedProcMountTypes: %v", cmp.Diff(newPSPSpec, scWithoutAllowedProcMountTypes()))
-						}
-					default:
-						// new PodSecurityPolicySpec should not need to be changed
-						if !reflect.DeepEqual(newPSPSpec, newPSPSpecInfo.sc()) {
-							t.Errorf("new PodSecurityPolicySpec changed: %v", cmp.Diff(newPSPSpec, newPSPSpecInfo.sc()))
-						}
-					}
-				})
-			}
-		}
-	}
-}