USB: serial: metro-usb: drop unused interrupt-out callback

Drop the unused interrupt-out callback.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Johan Hovold 2017-02-08 13:49:16 +01:00
commit 965bbef552