spi: offload: remove unnecessary check on trigger->ops

Considering that trigger->ops = NULL happens only when the trigger is
being removed from the list, and at that point the operation is protected
with the spi_offload_triggers_lock, it is possible to remove the
!trigger->ops check because it will never be true in
spi_offload_trigger_get()

Signed-off-by: Andres Urian Florez <andres.emb.sys@gmail.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250418171426.9868-1-andres.emb.sys@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: andres-emb

drivers/spi/spi-offload.c

@@ -183,9 +183,6 @@ static struct spi_offload_trigger
 
 	guard(mutex)(&trigger->lock);
 
-	if (!trigger->ops)
-		return ERR_PTR(-ENODEV);
-
 	if (trigger->ops->request) {
 		ret = trigger->ops->request(trigger, type, args->args, args->nargs);
 		if (ret)