ASoC: Remove unused pmdown_time flag

The flag is no longer used in the code so it just wastes a bit.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index c0922a0..2c8eb0a 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -427,7 +427,6 @@
 	unsigned char ext:1;			/* has external widgets */
 	unsigned char muted:1;			/* muted for pop reduction */
 	unsigned char suspend:1;		/* was active before suspend */
-	unsigned char pmdown:1;			/* waiting for timeout */
 
 	int (*power_check)(struct snd_soc_dapm_widget *w);