Input: gpio_mouse - 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>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/mouse/gpio_mouse.c

@@ -138,7 +138,6 @@ static int gpio_mouse_probe(struct platform_device *pdev)
 
  out_free_polldev:
 	input_free_polled_device(input_poll);
-	platform_set_drvdata(pdev, NULL);
 
  out_free_gpios:
 	while (--i >= 0) {
@@ -165,8 +164,6 @@ static int gpio_mouse_remove(struct platform_device *pdev)
 			gpio_free(pin);
 	}
 
-	platform_set_drvdata(pdev, NULL);
-
 	return 0;
 }