ASoC: uniphier: Drop superfluous ioctl PCM ops

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

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20191210145406.21419-20-tiwai@suse.deSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/uniphier/aio-dma.c

@@ -222,7 +222,6 @@ static int uniphier_aiodma_new(struct snd_soc_component *component,
 
 static const struct snd_soc_component_driver uniphier_soc_platform = {
 	.open		= uniphier_aiodma_open,
-	.ioctl		= snd_soc_pcm_lib_ioctl,
 	.prepare	= uniphier_aiodma_prepare,
 	.trigger	= uniphier_aiodma_trigger,
 	.pointer	= uniphier_aiodma_pointer,