ASoC: wm8580: Cleanup manual bias level transitions

Since the ASoC core now takes care of setting the bias level to
SND_SOC_BIAS_OFF when removing the CODEC there is no need to do it manually
anymore either.

The manual transition to SND_SOC_BIAS_STANDBY at the end of CODEC probe()
can also be removed as the core will automatically do this after the CODEC
has been probed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm8580.c

@@ -882,8 +882,6 @@ static int wm8580_probe(struct snd_soc_codec *codec)
 		goto err_regulator_enable;
 	}
 
-	wm8580_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
 	return 0;
 
 err_regulator_enable:
@@ -897,8 +895,6 @@ static int wm8580_remove(struct snd_soc_codec *codec)
 {
 	struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
 
-	wm8580_set_bias_level(codec, SND_SOC_BIAS_OFF);
-
 	regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
 
 	return 0;