ALSA: Kill snd_assert() in sound/pci/*

Kill snd_assert() in sound/pci/*, either removed or replaced with
if () with snd_BUG_ON().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c
index e596d77..60119d2 100644
--- a/sound/pci/ice1712/ice1724.c
+++ b/sound/pci/ice1712/ice1724.c
@@ -2250,7 +2250,8 @@
 	int err;
 	struct snd_kcontrol *kctl;
 
-	snd_assert(ice->pcm != NULL, return -EIO);
+	if (snd_BUG_ON(!ice->pcm))
+		return -EIO;
 
 	err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_vt1724_mixer_pro_spdif_route, ice));
 	if (err < 0)