usb: host: ohci-da8xx: Remove redundant platform_set_drvdata()

Commit 0998d06310 (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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/ohci-da8xx.c

@@ -401,7 +401,6 @@ static int ohci_hcd_da8xx_drv_remove(struct platform_device *dev)
 	struct usb_hcd	*hcd = platform_get_drvdata(dev);
 
 	usb_hcd_da8xx_remove(hcd, dev);
-	platform_set_drvdata(dev, NULL);
 
 	return 0;
 }