platform: x86: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NMatthew Garrett <matthew.garrett@nebula.com>

drivers/platform/x86/compal-laptop.c

@@ -1083,7 +1083,6 @@ static int compal_remove(struct platform_device *pdev)
 	hwmon_device_unregister(data->hwmon_dev);
 	power_supply_unregister(&data->psy);
 
-	platform_set_drvdata(pdev, NULL);
 	kfree(data);
 
 	sysfs_remove_group(&pdev->dev.kobj, &compal_attribute_group);

drivers/platform/x86/intel_mid_powerbtn.c

@@ -128,7 +128,6 @@ static int mfld_pb_remove(struct platform_device *pdev)
 
 	free_irq(irq, input);
 	input_unregister_device(input);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }

drivers/platform/x86/intel_mid_thermal.c

@@ -542,7 +542,6 @@ static int mid_thermal_remove(struct platform_device *pdev)
 	}
 
 	kfree(pinfo);
-	platform_set_drvdata(pdev, NULL);
 
 	/* Stop the ADC */
 	return configure_adc(0);