Input: twl4030_keypad - 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: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/keyboard/twl4030_keypad.c

@@ -438,7 +438,6 @@ static int twl4030_kp_remove(struct platform_device *pdev)
 
 	free_irq(kp->irq, kp);
 	input_unregister_device(kp->input);
-	platform_set_drvdata(pdev, NULL);
 	kfree(kp);
 
 	return 0;