ASoC: fsl_ssi: Remove unnecessary dev_set_drvdata()

Driver core clears the driver data to NULL after device_release or on probe
failure, so just remove it from here.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/fsl/fsl_ssi.c

@@ -1114,7 +1114,6 @@ error_dai:
 	snd_soc_unregister_component(&pdev->dev);
 
 error_dev:
-	dev_set_drvdata(&pdev->dev, NULL);
 	device_remove_file(&pdev->dev, dev_attr);
 
 error_clk: