Revert "ASoC: wm8940: Properly set codec->dapm.bias_level"

This reverts commit d85b1ce7.

It breaks the build and probably shouldn't be in the 2.6.32 kernel
Reported-by: Stefan Bader <stefan.bader@canonical.com>
Cc: Chris Paulson-Ellis <chris@edesix.com>
Cc: Axel Lin <axel.lin@gmail.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

sound/soc/codecs/wm8940.c

@@ -473,8 +473,6 @@ static int wm8940_set_bias_level(struct snd_soc_codec *codec,
 		break;
 	}
 
-	codec->dapm.bias_level = level;
-
 	return ret;
 }