ASoC: mt6351: remove unneeded variable

Reported by Coccinelle:
mt6351.c:1418:5-8: Unneeded variable: "ret". Return "0" on line 1437

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/mt6351.c b/sound/soc/codecs/mt6351.c
index f73dcd7..4b3ce01 100644
--- a/sound/soc/codecs/mt6351.c
+++ b/sound/soc/codecs/mt6351.c
@@ -1415,8 +1415,6 @@
 
 static int mt6351_codec_init_reg(struct snd_soc_component *cmpnt)
 {
-	int ret = 0;
-
 	/* Disable CLKSQ 26MHz */
 	regmap_update_bits(cmpnt->regmap, MT6351_TOP_CLKSQ, 0x0001, 0x0);
 	/* disable AUDGLB */
@@ -1434,7 +1432,7 @@
 	/* Reverse the PMIC clock*/
 	regmap_update_bits(cmpnt->regmap, MT6351_AFE_PMIC_NEWIF_CFG2,
 			   0x8000, 0x8000);
-	return ret;
+	return 0;
 }
 
 static int mt6351_codec_probe(struct snd_soc_component *cmpnt)