usb: gadget: imx_udc: remove unnecessary initializations

udc-core now sets dma-related and parent fields
for us, we don't need to do it ourselves.
Signed-off-by: NFelipe Balbi <balbi@ti.com>

drivers/usb/gadget/imx_udc.c

@@ -1461,9 +1461,6 @@ static int __init imx_udc_probe(struct platform_device *pdev)
 	imx_usb->clk = clk;
 	imx_usb->dev = &pdev->dev;
 
-	imx_usb->gadget.dev.parent = &pdev->dev;
-	imx_usb->gadget.dev.dma_mask = pdev->dev.dma_mask;
-
 	platform_set_drvdata(pdev, imx_usb);
 
 	usb_init_data(imx_usb);