staging:trigger: drop assignment of iio_trigger_ops.owner

The equivalent of this is now done via macro magic when
the relevant register call is made.  The actual structure
elements will shortly go away.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>

drivers/staging/iio/trigger/iio-trig-bfin-timer.c

@@ -172,7 +172,6 @@ static int iio_bfin_tmr_get_number(int irq)
 }
 
 static const struct iio_trigger_ops iio_bfin_tmr_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = iio_bfin_tmr_set_state,
 };