ASoC: soc-pcm: remove shadowing variable

cppcheck warning:

sound/soc/soc-pcm.c:1718:7: style: Local variable 'i' shadows outer
variable [shadowVariable]
  int i;
      ^
sound/soc/soc-pcm.c:1696:6: note: Shadowed declaration
 int i;
     ^
sound/soc/soc-pcm.c:1718:7: note: Shadow variable
  int i;
      ^

the second variable seems totally unnecessary.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210218221921.88991-4-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-pcm.c

@@ -1718,7 +1718,6 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream,
 			snd_soc_dpcm_get_substream(be, stream);
 		struct snd_soc_pcm_runtime *rtd;
 		struct snd_soc_dai *dai;
-		int i;
 
 		/* A backend may not have the requested substream */
 		if (!be_substream)