usb: cdns3: Remove redundant dev_err call in cdns3_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20190903153625.85691-1-weiyongjun1@huawei.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/cdns3/core.c

@@ -462,10 +462,8 @@ static int cdns3_probe(struct platform_device *pdev)
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dev");
 	regs = devm_ioremap_resource(dev, res);
-	if (IS_ERR(regs)) {
-		dev_err(dev, "couldn't iomap dev resource\n");
+	if (IS_ERR(regs))
 		return PTR_ERR(regs);
-	}
 	cdns->dev_regs	= regs;
 
 	cdns->otg_irq = platform_get_irq_byname(pdev, "otg");