timerfd: Remove an always true check

We would have returned -EINVAL earlier if ticks wasn't set.

Signed-off-by: Dan Carpenter <[e-mail]>
Cc: Alexander Viro <[e-mail]>
Cc: Cyrill Gorcunov <[e-mail]>
Link: http://lkml.kernel.org/r/20140801082848.GF28869@mwanda
Signed-off-by: Thomas Gleixner <[e-mail]>

fs/timerfd.c

···
 		spin_lock_irq(&ctx->wqh.lock);
 		if (!timerfd_canceled(ctx)) {
 			ctx->ticks = ticks;
-			if (ticks)
-				wake_up_locked(&ctx->wqh);
+			wake_up_locked(&ctx->wqh);
 		} else
 			ret = -ECANCELED;
 		spin_unlock_irq(&ctx->wqh.lock);