ASoC: intel: Drop superfluous ioctl PCM ops

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

Cc: Cezary Rojewski <cezary.rojewski@intel.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Cc: Jie Yang <yang.jie@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20191210145406.21419-8-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/atom/sst-mfld-platform-pcm.c

@@ -705,7 +705,6 @@ static const struct snd_soc_component_driver sst_soc_platform_drv  = {
 	.probe		= sst_soc_probe,
 	.remove		= sst_soc_remove,
 	.open		= sst_soc_open,
-	.ioctl		= snd_soc_pcm_lib_ioctl,
 	.trigger	= sst_soc_trigger,
 	.pointer	= sst_soc_pointer,
 	.compr_ops	= &sst_platform_compr_ops,