[ALSA] Remove useless reference to obsolete KERNELD

Remove the final useless reference to the obsolete KERNELD feature.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/core/timer.c

@@ -35,9 +35,6 @@
 #include <sound/minors.h>
 #include <sound/initval.h>
 #include <linux/kmod.h>
-#ifdef CONFIG_KERNELD
-#include <linux/kerneld.h>
-#endif
 
 #if defined(CONFIG_SND_HPET) || defined(CONFIG_SND_HPET_MODULE)
 #define DEFAULT_TIMER_LIMIT 3