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/via82xx_modem.c b/sound/pci/via82xx_modem.c
index 31f64ee..640c338 100644
--- a/sound/pci/via82xx_modem.c
+++ b/sound/pci/via82xx_modem.c
@@ -612,7 +612,8 @@
 	struct viadev *viadev = substream->runtime->private_data;
 	unsigned int idx, ptr, count, res;
 
-	snd_assert(viadev->tbl_entries, return 0);
+	if (snd_BUG_ON(!viadev->tbl_entries))
+		return 0;
 	if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
 		return 0;