ASoC: sun4i-codec: Remove unnecessary function call

First of all,the address of pdev->dev is assigned to card->dev in
create_card,then the function platform_set_drvdata copies the value
the variable card to pdev->dev.driver_data, but when calling
snd_soc_register_card,the function dev_set_drvdata(card->dev, card)
will also do the same copy operation,so i think that the former copy
operation can be removed.
Signed-off-by: Peng Donglin <dolinux.peng@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sunxi/sun4i-codec.c

@@ -1655,7 +1655,6 @@ static int sun4i_codec_probe(struct platform_device *pdev)
 		goto err_unregister_codec;
 	}
 
-	platform_set_drvdata(pdev, card);
 	snd_soc_card_set_drvdata(card, scodec);
 
 	ret = snd_soc_register_card(card);