ASoC: Tegra: wm8903: Remove redundant drvdata clears

When the driver is not initialized/registered, nothing should be touching
these fields anyway, so there's no point clearing them out.

(Applying Mark's TrimSlice review comments to the existing driver)
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/tegra/tegra_wm8903.c

@@ -417,15 +417,12 @@ static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
 			ret);
-		goto err_clear_drvdata;
+		goto err_fini_utils;
 	}
 
 	return 0;
 
-err_clear_drvdata:
-	snd_soc_card_set_drvdata(card, NULL);
-	platform_set_drvdata(pdev, NULL);
-	card->dev = NULL;
+err_fini_utils:
 	tegra_asoc_utils_fini(&machine->util_data);
 err_free_machine:
 	kfree(machine);
@@ -440,10 +437,6 @@ static int __devexit tegra_wm8903_driver_remove(struct platform_device *pdev)
 
 	snd_soc_unregister_card(card);
 
-	snd_soc_card_set_drvdata(card, NULL);
-	platform_set_drvdata(pdev, NULL);
-	card->dev = NULL;
-
 	tegra_asoc_utils_fini(&machine->util_data);
 
 	if (machine->gpio_requested & GPIO_EXT_MIC_EN)