ASoC: Remove return value checking for gpiochip_remove()

gpiochip_remove() will return void eventually.
Thus this patch removes return value checking for gpiochip_remove().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --cc sound/soc/codecs/rt5677.c
Simple merge

diff --cc sound/soc/codecs/wm5100.c
Simple merge

diff --cc sound/soc/codecs/wm8903.c
Simple merge

diff --cc sound/soc/codecs/wm8962.c
Simple merge

diff --cc sound/soc/codecs/wm8996.c
Simple merge