pps: remove unreachable code

Remove code enabled only when CONFIG_PREEMPT_RT is turned on because it is
not used in the vanilla kernel.

Signed-off-by: Alexander Gordeev <[e-mail]>
Cc: john stultz <[e-mail]>
Cc: Rodolfo Giometti <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/pps/generators/pps_gen_parport.c

···
 
 	hrtimer_init(&device.timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
 	device.timer.function = hrtimer_event;
-#ifdef CONFIG_PREEMPT_RT
-	/* hrtimer interrupt will run in the interrupt context with this */
-	device.timer.irqsafe = 1;
-#endif
-
 	hrtimer_start(&device.timer, next_intr_time(&device), HRTIMER_MODE_ABS);
 
 	return;