ASoC: remove snd_soc_component_read32()

No driver is using snd_soc_component_read32() anymore.
This patch removes it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/877dw74mbv.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc-component.h

@@ -333,7 +333,6 @@ void snd_soc_component_set_aux(struct snd_soc_component *component,
 int snd_soc_component_init(struct snd_soc_component *component);
 
 /* component IO */
-#define snd_soc_component_read32 snd_soc_component_read
 unsigned int snd_soc_component_read(struct snd_soc_component *component,
 				      unsigned int reg);
 int snd_soc_component_write(struct snd_soc_component *component,