eventcomm: Drop requirement for a grab during init
eventcomm: Drop requirement for a grab during init

When we required a grab on the device, this was a shortcut so we didn't have
to query the device only to realise we can't read events off it anyway. Now
that we don't actually grab the device by default, this is unnecessary.

Something else may have a temporary grab on the device during init, in which
case we just continue as usual and read events if and when they become
available.

Signed-off-by: Peter Hutterer <b9c50af7afa7642f6f854434cda9ffe54ece8b85@who-t.net>
Reviewed-by: Hans de Goede <9fa1be1a5b5729e4c6b404f34c9ce49ff4882fd8@redhat.com>

mad-s/xf86-input-synaptics-absolute,mad-s/xf86-input-synaptics-absolute