ALSA: i2c: 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/i2c/cs8427.c

@@ -621,15 +621,3 @@ int snd_cs8427_iec958_pcm(struct snd_i2c_device *cs8427, unsigned int rate)
 }
 
 EXPORT_SYMBOL(snd_cs8427_iec958_pcm);
-
-static int __init alsa_cs8427_module_init(void)
-{
-	return 0;
-}
-
-static void __exit alsa_cs8427_module_exit(void)
-{
-}
-
-module_init(alsa_cs8427_module_init)
-module_exit(alsa_cs8427_module_exit)

sound/i2c/i2c.c

@@ -338,16 +338,3 @@ static int snd_i2c_bit_probeaddr(struct snd_i2c_bus *bus, unsigned short addr)
 	snd_i2c_bit_stop(bus);
 	return err;
 }
-
-
-static int __init alsa_i2c_init(void)
-{
-	return 0;
-}
-
-static void __exit alsa_i2c_exit(void)
-{
-}
-
-module_init(alsa_i2c_init)
-module_exit(alsa_i2c_exit)

sound/i2c/other/ak4xxx-adda.c

@@ -911,15 +911,3 @@ int snd_akm4xxx_build_controls(struct snd_akm4xxx *ak)
 	return 0;
 }
 EXPORT_SYMBOL(snd_akm4xxx_build_controls);
-
-static int __init alsa_akm4xxx_module_init(void)
-{
-	return 0;
-}
-        
-static void __exit alsa_akm4xxx_module_exit(void)
-{
-}
-        
-module_init(alsa_akm4xxx_module_init)
-module_exit(alsa_akm4xxx_module_exit)

sound/i2c/tea6330t.c

@@ -368,19 +368,3 @@ int snd_tea6330t_update_mixer(struct snd_card *card,
 
 EXPORT_SYMBOL(snd_tea6330t_detect);
 EXPORT_SYMBOL(snd_tea6330t_update_mixer);
-
-/*
- *  INIT part
- */
-
-static int __init alsa_tea6330t_init(void)
-{
-	return 0;
-}
-
-static void __exit alsa_tea6330t_exit(void)
-{
-}
-
-module_init(alsa_tea6330t_init)
-module_exit(alsa_tea6330t_exit)