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 This is obsolete meanwhile, so fix it and hope the word will spread.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/rtc/rtc-ds3232.c

@@ -268,7 +268,6 @@ out_irq:
 		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;
 }