Input: maplemouse - remove unused mdev->driver assignment

The driver field in struct maple_device is no longer used since
commit 1795cf48b322 ("sh/maple: clean maple bus code") which removed
the reading of this field.

Remove the unused assignment to mdev->driver and the now unused
mdrv variable in probe_maple_mouse.

Assisted-by: Antigravity:gemini-3.5-flash
Link: https://patch.msgid.link/20260703-b4-maple-cleanup-v1-11-41e424964da5@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
1 file changed