ALSA: pci: Remove empty init and exit

For a sake of code simplification, remove the init and the exit
entries that do nothing.

Notes for readers: actually it's OK to remove *both* init and exit,
but not OK to remove the exit entry.  By removing only the exit while
keeping init, the module becomes permanently loaded; i.e. you cannot
unload it any longer!
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/ac97/ac97_codec.c

@@ -2941,19 +2941,3 @@ int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
 }
 
 EXPORT_SYMBOL(snd_ac97_tune_hardware);
-
-/*
- *  INIT part
- */
-
-static int __init alsa_ac97_init(void)
-{
-	return 0;
-}
-
-static void __exit alsa_ac97_exit(void)
-{
-}
-
-module_init(alsa_ac97_init)
-module_exit(alsa_ac97_exit)

sound/pci/ice1712/ak4xxx.c

@@ -179,18 +179,6 @@ int snd_ice1712_akm4xxx_build_controls(struct snd_ice1712 *ice)
 	return 0;
 }
 
-static int __init alsa_ice1712_akm4xxx_module_init(void)
-{
-	return 0;
-}
-        
-static void __exit alsa_ice1712_akm4xxx_module_exit(void)
-{
-}
-        
-module_init(alsa_ice1712_akm4xxx_module_init)
-module_exit(alsa_ice1712_akm4xxx_module_exit)
-
 EXPORT_SYMBOL(snd_ice1712_akm4xxx_init);
 EXPORT_SYMBOL(snd_ice1712_akm4xxx_free);
 EXPORT_SYMBOL(snd_ice1712_akm4xxx_build_controls);