ASoC: Intel: bytcr_rt5640: remove unused variable

Fix GCC warning with W=1

sound/soc/intel//boards/bytcr_rt5640.c:936:40: warning:
‘byt_rt5640_dai_params’ defined but not used
[-Wunused-const-variable=]

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200113210428.27457-18-pierre-louis.bossart@linux.intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>