ASoC: Remove unused 'muted' flag from DAPM widgets

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

include/sound/soc-dapm.h

@@ -425,7 +425,6 @@ struct snd_soc_dapm_widget {
 	unsigned char connected:1;		/* connected codec pin */
 	unsigned char new:1;			/* cnew complete */
 	unsigned char ext:1;			/* has external widgets */
-	unsigned char muted:1;			/* muted for pop reduction */
 	unsigned char suspend:1;		/* was active before suspend */
 
 	int (*power_check)(struct snd_soc_dapm_widget *w);