dmaengine: milbeaut-xdmac: remove redundant error log

platform_get_irq() prints the error message, so caller need not do so,
remove the error line in this driver for platform_get_irq()
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20191106163128.1980714-2-vkoul@kernel.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/milbeaut-xdmac.c

@@ -269,11 +269,8 @@ static int milbeaut_xdmac_chan_init(struct platform_device *pdev,
 	int irq, ret;
 
 	irq = platform_get_irq(pdev, chan_id);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "failed to get IRQ number for ch%d\n",
-			chan_id);
+	if (irq < 0)
 		return irq;
-	}
 
 	irq_name = devm_kasprintf(dev, GFP_KERNEL, "milbeaut-xdmac-%d",
 				  chan_id);