The removal of the double-use will cause some suble bugs as some conditions
to check for the dev->u.master case were broken and also evaluated as true
if lastSlave was set (instead of master).
Also breaks the input ABI.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Benjamin Tissoires <tissoire@cena.fr>