ASoC: Remove unused srate variable in tegra_spdif_hw_params

Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/tegra/tegra_spdif.c

@@ -127,7 +127,7 @@ static int tegra_spdif_hw_params(struct snd_pcm_substream *substream,
 {
 	struct device *dev = substream->pcm->card->dev;
 	struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai);
-	int ret, srate, spdifclock;
+	int ret, spdifclock;
 
 	spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_PACK;
 	spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_BIT_MODE_MASK;
@@ -140,7 +140,6 @@ static int tegra_spdif_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
-	srate = params_rate(params);
 	switch (params_rate(params)) {
 	case 32000:
 		spdifclock = 4096000;