rtc: mxc_v2: Remove unnecessary platform_get_resource() error check

devm_ioremap_resource() already checks if the resource is NULL, so
remove the unnecessary platform_get_resource() error check.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

drivers/rtc/rtc-mxc_v2.c

@@ -296,9 +296,6 @@ static int mxc_rtc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENODEV;
-
 	pdata->ioaddr = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(pdata->ioaddr))
 		return PTR_ERR(pdata->ioaddr);