ALSA: spi: Drop superfluous ioctl PCM ops

PCM core deals the empty ioctl field now as default(*).
Let's kill the redundant lines.

(*) commit fc033cbf ("ALSA: pcm: Allow NULL ioctl ops")

Link: https://lore.kernel.org/r/20191210061145.24641-21-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/spi/at73c213.c

@@ -316,7 +316,6 @@ snd_at73c213_pcm_pointer(struct snd_pcm_substream *substream)
 static const struct snd_pcm_ops at73c213_playback_ops = {
 	.open		= snd_at73c213_pcm_open,
 	.close		= snd_at73c213_pcm_close,
-	.ioctl		= snd_pcm_lib_ioctl,
 	.hw_params	= snd_at73c213_pcm_hw_params,
 	.prepare	= snd_at73c213_pcm_prepare,
 	.trigger	= snd_at73c213_pcm_trigger,