Input: da9052_tsi - remove redundant platform_set_drvdata()

Commit 0998d063 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/da9052_tsi.c

@@ -329,8 +329,6 @@ static int  da9052_ts_remove(struct platform_device *pdev)
 	input_unregister_device(tsi->dev);
 	kfree(tsi);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return 0;
 }