[ALSA] unexport snd_ctl_elem_{read,write}

snd_ctl_elem_{read,write} no longer have any modular users
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@suse.cz>

sound/core/control.c

@@ -716,8 +716,6 @@ int snd_ctl_elem_read(struct snd_card *card, struct snd_ctl_elem_value *control)
 	return result;
 }
 
-EXPORT_SYMBOL(snd_ctl_elem_read);
-
 static int snd_ctl_elem_read_user(struct snd_card *card,
 				  struct snd_ctl_elem_value __user *_control)
 {
@@ -781,8 +779,6 @@ int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file,
 	return result;
 }
 
-EXPORT_SYMBOL(snd_ctl_elem_write);
-
 static int snd_ctl_elem_write_user(struct snd_ctl_file *file,
 				   struct snd_ctl_elem_value __user *_control)
 {