ASoC: wm8350: don't use [delayed_]work_pending()

There's no need to test whether a (delayed) work item in pending
before queueing, flushing or cancelling it.  Most uses are unnecessary
and quite a few of them are buggy.

Remove unnecessary pending tests from wm8350.  Only compile tested.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm8350.c

@@ -283,7 +283,6 @@ static int pga_event(struct snd_soc_dapm_widget *w,
 		out->ramp = WM8350_RAMP_UP;
 		out->active = 1;
 
-		if (!delayed_work_pending(&codec->dapm.delayed_work))
 		schedule_delayed_work(&codec->dapm.delayed_work,
 				      msecs_to_jiffies(1));
 		break;
@@ -292,7 +291,6 @@ static int pga_event(struct snd_soc_dapm_widget *w,
 		out->ramp = WM8350_RAMP_DOWN;
 		out->active = 0;
 
-		if (!delayed_work_pending(&codec->dapm.delayed_work))
 		schedule_delayed_work(&codec->dapm.delayed_work,
 				      msecs_to_jiffies(1));
 		break;