Delete the right registry value in DriverEntry().
Delete the right registry value in DriverEntry().

Signed-off-by: Paul Durrant <dba6cd059c0054f8a3c62ba902cd9d7238853ee4@citrix.com>

xenserver/win-xenvif,xenserver/win-xenvif,xenserver/win-xenvif,xenserver/win-xenvif