ALSA: sparc: Remove superfluous snd_dma_continuous_data()

The recent change (commit 08422d2c559d: "ALSA: memalloc: Allow NULL
device for SNDRV_DMA_TYPE_CONTINUOUS type") made the PCM preallocation
helper accepting NULL as the device pointer for the default usage.
Drop the snd_dma_continuous_data() usage that became superfluous from
the callers.

Link: https://lore.kernel.org/r/20191105151856.10785-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/sparc/dbri.c b/sound/sparc/dbri.c
index 6e065d4..4911103 100644
--- a/sound/sparc/dbri.c
+++ b/sound/sparc/dbri.c
@@ -2249,7 +2249,7 @@ static int snd_dbri_pcm(struct snd_card *card)
 	strcpy(pcm->name, card->shortname);
 
 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
-					      snd_dma_continuous_data(GFP_KERNEL),
+					      NULL,
 					      64 * 1024, 64 * 1024);
 	return 0;
 }