diff --git a/pkg/api/types.go b/pkg/api/types.go
index 6b62d4e8608..2d4fc187d75 100644
--- a/pkg/api/types.go
+++ b/pkg/api/types.go
@@ -195,20 +195,6 @@ type VolumeSource struct {
 	NFS *NFSVolumeSource `json:"nfs"`
 }
 
-// PersistentVolumeSource is similar to VolumeSource but meant for the administrator who creates PVs.
-// Exactly one of its members must be set.
-type PersistentVolumeSource struct {
-	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
-	// kubelet's host machine and then exposed to the pod.
-	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"persistentDisk"`
-	// HostPath represents a directory on the host.
-	// This is useful for development and testing only.
-	// on-host storage is not supported in any way
-	HostPath *HostPathVolumeSource `json:"hostPath"`
-	// NFS represents an NFS mount on the host that shares a pod's lifetime
-	NFS *NFSVolumeSource `json:"nfs"`
-}
-
 // used by VolumeSources to describe their mounting/access modes
 type AccessModeType string
 
diff --git a/pkg/api/v1beta1/types.go b/pkg/api/v1beta1/types.go
index 268c311b274..36893f31572 100644
--- a/pkg/api/v1beta1/types.go
+++ b/pkg/api/v1beta1/types.go
@@ -109,20 +109,6 @@ type VolumeSource struct {
 	NFS *NFSVolumeSource `json:"nfs" description:"NFS volume that will be mounted in the host machine "`
 }
 
-// PersistentVolumeSource is similar to VolumeSource but meant for the administrator who creates PVs.
-// Exactly one of its members must be set.
-type PersistentVolumeSource struct {
-	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
-	// kubelet's host machine and then exposed to the pod.
-	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"persistentDisk" description:"GCE disk resource attached to the host machine on demand"`
-	// HostPath represents a directory on the host.
-	// This is useful for development and testing only.
-	// on-host storage is not supported in any way
-	HostPath *HostPathVolumeSource `json:"hostPath" description:"Persistent hostPath volume useful for development and testing"`
-	// NFS represents an NFS mount on the host that shares a pod's lifetime
-	NFS *NFSVolumeSource `json:"nfs" description:"Persistent NFS volume that will be mounted in the host machine"`
-}
-
 // used by VolumeSources to describe their mounting/access modes
 type AccessModeType string
 
diff --git a/pkg/api/v1beta2/types.go b/pkg/api/v1beta2/types.go
index 68baea9dac8..245902137fb 100644
--- a/pkg/api/v1beta2/types.go
+++ b/pkg/api/v1beta2/types.go
@@ -82,20 +82,6 @@ type VolumeSource struct {
 	NFS *NFSVolumeSource `json:"nfs" description:"NFS volume that will be mounted in the host machine"`
 }
 
-// PersistentVolumeSource is similar to VolumeSource but meant for the administrator who creates PVs.
-// Exactly one of its members must be set.
-type PersistentVolumeSource struct {
-	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
-	// kubelet's host machine and then exposed to the pod.
-	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"persistentDisk" description:"GCE disk resource attached to the host machine on demand"`
-	// HostPath represents a directory on the host.
-	// This is useful for development and testing only.
-	// on-host storage is not supported in any way
-	HostPath *HostPathVolumeSource `json:"hostPath" description:"Persistent hostPath volume useful for development and testing"`
-	// NFS represents an NFS mount on the host that shares a pod's lifetime
-	NFS *NFSVolumeSource `json:"nfs" description:"Persistent NFS volume that will be mounted in the host machine"`
-}
-
 // used by VolumeSources to describe their mounting/access modes
 type AccessModeType string
 
diff --git a/pkg/api/v1beta3/types.go b/pkg/api/v1beta3/types.go
index 0c084374e27..a277497dc6d 100644
--- a/pkg/api/v1beta3/types.go
+++ b/pkg/api/v1beta3/types.go
@@ -214,20 +214,6 @@ type VolumeSource struct {
 	NFS *NFSVolumeSource `json:"nfs" description:"NFS volume that will be mounted in the host machine"`
 }
 
-// PersistentVolumeSource is similar to VolumeSource but meant for the administrator who creates PVs.
-// Exactly one of its members must be set.
-type PersistentVolumeSource struct {
-	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
-	// kubelet's host machine and then exposed to the pod.
-	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"persistentDisk" description:"GCE disk resource attached to the host machine on demand"`
-	// HostPath represents a directory on the host.
-	// This is useful for development and testing only.
-	// on-host storage is not supported in any way
-	HostPath *HostPathVolumeSource `json:"hostPath" description:"Persistent hostPath volume useful for development and testing"`
-	// NFS represents an NFS mount on the host that shares a pod's lifetime
-	NFS *NFSVolumeSource `json:"nfs" description:"Persistent NFS volume that will be mounted in the host machine"`
-}
-
 // used by VolumeSources to describe their mounting/access modes
 type AccessModeType string
 
diff --git a/pkg/volume/plugins.go b/pkg/volume/plugins.go
index f11289a20b2..9d80a9f3d4b 100644
--- a/pkg/volume/plugins.go
+++ b/pkg/volume/plugins.go
@@ -182,17 +182,6 @@ func (pm *VolumePluginMgr) FindPluginByName(name string) (VolumePlugin, error) {
 	return pm.plugins[matches[0]], nil
 }
 
-// FindPersistentPluginBySpec looks for a plugin that can support a given volume
-// specification.  If no plugins can support or more than one plugin can
-// support it, return error.
-func (pm *VolumePluginMgr) FindPersistentPluginBySpec(spec *api.Volume) (PersistentVolumePlugin, error) {
-	volumePlugin, err := pm.FindPluginBySpec(spec)
-	if err != nil {
-		return nil, err
-	}
-	return volumePlugin.(PersistentVolumePlugin), nil
-}
-
 // FindPluginByName fetches a plugin by name or by legacy name.  If no plugin
 // is found, returns error.
 func (pm *VolumePluginMgr) FindPersistentPluginByName(name string) (PersistentVolumePlugin, error) {