ASoC: Remove unused 'reg2' field from soc_enum struct

Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NMark Brown <broonie@linaro.org>

include/sound/soc.h

@@ -1101,7 +1101,6 @@ struct soc_mreg_control {
 /* enumerated kcontrol */
 struct soc_enum {
 	unsigned short reg;
-	unsigned short reg2;
 	unsigned char shift_l;
 	unsigned char shift_r;
 	unsigned int items;