igc: Remove obsolete IGC_ERR define

Address community comment.
Remove obsolete IGC_ERR define and use dev_err method.
Suggested by Joe Perches.
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/igc/igc.h

@@ -11,8 +11,6 @@
 #include <linux/ethtool.h>
 #include <linux/sctp.h>
 
-#define IGC_ERR(args...) pr_err("igc: " args)
-
 #include "igc_hw.h"
 
 /* main */

drivers/net/ethernet/intel/igc/igc_main.c

@@ -3535,7 +3535,7 @@ static int igc_probe(struct pci_dev *pdev,
 			err = dma_set_coherent_mask(&pdev->dev,
 						    DMA_BIT_MASK(32));
 			if (err) {
-				IGC_ERR("Wrong DMA configuration, aborting\n");
+				dev_err(&pdev->dev, "igc: Wrong DMA config\n");
 				goto err_dma;
 			}
 		}