net: axienet: Remove redundant dev_err call in axienet_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Reported-by: NHulk Robot <hulkci@huawei.com>
Signed-off-by: NGuobin Huang <huangguobin4@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/xilinx/xilinx_axienet_main.c

@@ -1896,7 +1896,6 @@ static int axienet_probe(struct platform_device *pdev)
 	ethres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	lp->regs = devm_ioremap_resource(&pdev->dev, ethres);
 	if (IS_ERR(lp->regs)) {
-		dev_err(&pdev->dev, "could not map Axi Ethernet regs.\n");
 		ret = PTR_ERR(lp->regs);
 		goto cleanup_clk;
 	}