fbdev: pxafb: Remove unnecessary print function dev_err()

Eliminate the follow coccicheck warning:

./drivers/video/fbdev/pxafb.c:2330:2-9: line 2330 is redundant because
platform_get_irq() already prints an error
Signed-off-by: KaiLong Wang <wangkailong@jari.cn>
Signed-off-by: Helge Deller <deller@gmx.de>

drivers/video/fbdev/pxafb.c

@@ -2327,7 +2327,6 @@ static int pxafb_probe(struct platform_device *dev)
 
 	irq = platform_get_irq(dev, 0);
 	if (irq < 0) {
-		dev_err(&dev->dev, "no IRQ defined\n");
 		ret = -ENODEV;
 		goto failed_free_mem;
 	}