ASoC: fsl: mpc5200_dma: remove unused psc_dma

linux/sound/soc/fsl/mpc5200_dma.c:305:18: warning: unused variable \
	psc_dma’ [-Wunused-variable]
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/fsl/mpc5200_dma.c

@@ -302,7 +302,6 @@ static int psc_dma_new(struct snd_soc_pcm_runtime *rtd)
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_soc_dai *dai = rtd->cpu_dai;
 	struct snd_pcm *pcm = rtd->pcm;
-	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(rtd->cpu_dai);
 	size_t size = psc_dma_hardware.buffer_bytes_max;
 	int rc;