ASoC: dmic: Remove spurious gpiolib select

The usage of GPIOs is optional in the code so don't force on gpiolib when
building it, avoiding warnings in randconfigs.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220202192333.3655269-2-broonie@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -842,7 +842,6 @@ config SND_SOC_DA9055
 
 config SND_SOC_DMIC
 	tristate "Generic Digital Microphone CODEC"
-	depends on GPIOLIB
 	help
 	  Enable support for the Generic Digital Microphone CODEC.
 	  Select this if your sound card has DMICs.