ata: libahci_platform: remove redundant dev_err message

devm_ioremap_resource already contains error message, so remove
the redundant dev_err message
Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/ata/libahci_platform.c

@@ -408,7 +408,6 @@ struct ahci_host_priv *ahci_platform_get_resources(struct platform_device *pdev,
 	hpriv->mmio = devm_ioremap_resource(dev,
 			      platform_get_resource(pdev, IORESOURCE_MEM, 0));
 	if (IS_ERR(hpriv->mmio)) {
-		dev_err(dev, "no mmio space\n");
 		rc = PTR_ERR(hpriv->mmio);
 		goto err_out;
 	}