[ALSA] cs4231: remove one busy wait

This busy_wait is not needed after latest changes
to the cs4231-lib

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
1 file changed