staging/olpc_dcon: Remove obsolete cleanup for clientdata

A few new i2c-drivers came into the kernel which clear the clientdata-pointer
on exit or error. This is obsolete meanwhile, the core will do it.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Andres Salomon <dilinger@queued.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Marek Belisko <marek.belisko@open-nandra.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/olpc_dcon/olpc_dcon.c

@@ -697,7 +697,6 @@ static int dcon_probe(struct i2c_client *client, const struct i2c_device_id *id)
  eirq:
 	free_irq(DCON_IRQ, dcon);
  einit:
-	i2c_set_clientdata(client, NULL);
 	kfree(dcon);
 	return rc;
 }
@@ -706,8 +705,6 @@ static int dcon_remove(struct i2c_client *client)
 {
 	struct dcon_priv *dcon = i2c_get_clientdata(client);
 
-	i2c_set_clientdata(client, NULL);
-
 	fb_unregister_client(&dcon->fbevent_nb);
 	unregister_reboot_notifier(&dcon->reboot_nb);
 	atomic_notifier_chain_unregister(&panic_notifier_list, &dcon_panic_nb);