i2c: Remove obsolete cleanup for clientdata

A few new i2c-drivers came into the kernel which clear the clientdata-pointer
on exit. This is obsolete meanwhile, so fix it and hope the word will spread.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

drivers/misc/bh1780gli.c

@@ -190,7 +190,6 @@ static int __devexit bh1780_remove(struct i2c_client *client)
 
 	ddata = i2c_get_clientdata(client);
 	sysfs_remove_group(&client->dev.kobj, &bh1780_attr_group);
-	i2c_set_clientdata(client, NULL);
 	kfree(ddata);
 
 	return 0;

drivers/regulator/ad5398.c

@@ -256,7 +256,6 @@ static int __devexit ad5398_remove(struct i2c_client *client)
 
 	regulator_unregister(chip->rdev);
 	kfree(chip);
-	i2c_set_clientdata(client, NULL);
 
 	return 0;
 }

drivers/regulator/isl6271a-regulator.c

@@ -191,8 +191,6 @@ static int __devexit isl6271a_remove(struct i2c_client *i2c)
 	struct isl_pmic *pmic = i2c_get_clientdata(i2c);
 	int i;
 
-	i2c_set_clientdata(i2c, NULL);
-
 	for (i = 0; i < 3; i++)
 		regulator_unregister(pmic->rdev[i]);
 

drivers/rtc/rtc-ds3232.c

@@ -268,7 +268,6 @@ static int __devinit ds3232_probe(struct i2c_client *client,
 		free_irq(client->irq, client);
 
 out_free:
-	i2c_set_clientdata(client, NULL);
 	kfree(ds3232);
 	return ret;
 }
@@ -287,7 +286,6 @@ static int __devexit ds3232_remove(struct i2c_client *client)
 	}
 
 	rtc_device_unregister(ds3232->rtc);
-	i2c_set_clientdata(client, NULL);
 	kfree(ds3232);
 	return 0;
 }