ALSA: atmel: Drop superfluous ioctl PCM ops

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

(*) commit fc033cbf6f ("ALSA: pcm: Allow NULL ioctl ops")

Link: https://lore.kernel.org/r/20191210061145.24641-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/atmel/ac97c.c

@@ -447,7 +447,6 @@ atmel_ac97c_capture_pointer(struct snd_pcm_substream *substream)
 static const struct snd_pcm_ops atmel_ac97_playback_ops = {
 	.open		= atmel_ac97c_playback_open,
 	.close		= atmel_ac97c_playback_close,
-	.ioctl		= snd_pcm_lib_ioctl,
 	.hw_params	= atmel_ac97c_playback_hw_params,
 	.prepare	= atmel_ac97c_playback_prepare,
 	.trigger	= atmel_ac97c_playback_trigger,
@@ -457,7 +456,6 @@ static const struct snd_pcm_ops atmel_ac97_playback_ops = {
 static const struct snd_pcm_ops atmel_ac97_capture_ops = {
 	.open		= atmel_ac97c_capture_open,
 	.close		= atmel_ac97c_capture_close,
-	.ioctl		= snd_pcm_lib_ioctl,
 	.hw_params	= atmel_ac97c_capture_hw_params,
 	.prepare	= atmel_ac97c_capture_prepare,
 	.trigger	= atmel_ac97c_capture_trigger,