ASoC: codecs: wm8400: remove unused variables

Fix W=1 warning by removing unused variables
Suggested-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200702163633.162508-1-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm8400.c

@@ -67,16 +67,12 @@ static void wm8400_component_reset(struct snd_soc_component *component)
 	wm8400_reset_codec_reg_cache(wm8400->wm8400);
 }
 
-static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 600, 0);
-
 static const DECLARE_TLV_DB_SCALE(in_pga_tlv, -1650, 3000, 0);
 
 static const DECLARE_TLV_DB_SCALE(out_mix_tlv, -2100, 0, 0);
 
 static const DECLARE_TLV_DB_SCALE(out_pga_tlv, -7300, 600, 0);
 
-static const DECLARE_TLV_DB_SCALE(out_omix_tlv, -600, 0, 0);
-
 static const DECLARE_TLV_DB_SCALE(out_dac_tlv, -7163, 0, 0);
 
 static const DECLARE_TLV_DB_SCALE(in_adc_tlv, -7163, 1763, 0);
@@ -439,14 +435,6 @@ static SOC_ENUM_SINGLE_DECL(wm8400_ainrmux_enum,
 static const struct snd_kcontrol_new wm8400_dapm_ainrmux_controls =
 SOC_DAPM_ENUM("Route", wm8400_ainrmux_enum);
 
-/* RXVOICE */
-static const struct snd_kcontrol_new wm8400_dapm_rxvoice_controls[] = {
-SOC_DAPM_SINGLE_TLV("LIN4/RXN", WM8400_INPUT_MIXER5, WM8400_LR4BVOL_SHIFT,
-			WM8400_LR4BVOL_MASK, 0, in_mix_tlv),
-SOC_DAPM_SINGLE_TLV("RIN4/RXP", WM8400_INPUT_MIXER6, WM8400_RL4BVOL_SHIFT,
-			WM8400_RL4BVOL_MASK, 0, in_mix_tlv),
-};
-
 /* LOMIX */
 static const struct snd_kcontrol_new wm8400_dapm_lomix_controls[] = {
 SOC_DAPM_SINGLE("LOMIX Right ADC Bypass Switch", WM8400_OUTPUT_MIXER1,