@@ -22,11 +22,6 @@ func init() {

 	graphdriver.Register("devicemapper", Init)

 }

-// Placeholder interfaces, to be replaced

-// at integration.

-

-// End of placeholder interfaces.

-

 // Driver contains the device set mounted and the home directory

 type Driver struct {

 	*DeviceSet

@@ -35,18 +30,8 @@ type Driver struct {

 	gidMaps []idtools.IDMap

 }

-var backingFs = "<unknown>"

-

 // Init creates a driver with the given home and the set of options.

 func Init(home string, options []string, uidMaps, gidMaps []idtools.IDMap) (graphdriver.Driver, error) {

-	fsMagic, err := graphdriver.GetFSMagic(home)

-	if err != nil {

-		return nil, err

-	}

-	if fsName, ok := graphdriver.FsNames[fsMagic]; ok {

-		backingFs = fsName

-	}

-

 	deviceSet, err := NewDeviceSet(home, true, options, uidMaps, gidMaps)

 	if err != nil {

 		return nil, err