ASoC: wm_adsp: Remove unused wm_coeff_ctl.kcontrol

The kcontrol pointer in wm_coeff_ctl is not used now.
Signed-off-by: NRichard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/codecs/wm_adsp.c

@@ -451,7 +451,6 @@ struct wm_coeff_ctl {
 	unsigned int offset;
 	size_t len;
 	unsigned int set:1;
-	struct snd_kcontrol *kcontrol;
 	struct soc_bytes_ext bytes_ext;
 	unsigned int flags;
 	unsigned int type;
@@ -1138,8 +1137,6 @@ static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
 
 	kfree(kcontrol);
 
-	ctl->kcontrol = snd_soc_card_get_kcontrol(dsp->card, ctl->name);
-
 	return 0;
 
 err_kcontrol: