usb: gadget: bcm63xx_udc: 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>
Cc: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/gadget/bcm63xx_udc.c

@@ -2420,7 +2420,6 @@ static int bcm63xx_udc_remove(struct platform_device *pdev)
 	usb_del_gadget_udc(&udc->gadget);
 	BUG_ON(udc->driver);
 
-	platform_set_drvdata(pdev, NULL);
 	bcm63xx_uninit_udc_hw(udc);
 
 	return 0;