ASoC: wm8995: Remove unused pointer in hp_supply_event()

Remove unused driver data pointer 'wm8995' in function hp_supply_event().

Detected by Coverity: CID 141181.
Signed-off-by: NChristian Engelmayer <cengelma@gmx.at>
Signed-off-by: NMark Brown <broonie@linaro.org>

sound/soc/codecs/wm8995.c

@@ -561,10 +561,8 @@ static int hp_supply_event(struct snd_soc_dapm_widget *w,
 			   struct snd_kcontrol *kcontrol, int event)
 {
 	struct snd_soc_codec *codec;
-	struct wm8995_priv *wm8995;
 
 	codec = w->codec;
-	wm8995 = snd_soc_codec_get_drvdata(codec);
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU: