ixgb: Remove unnecessary defines, use pr_debug

Use the current logging styles.

Remove unnecessary _DEBUG_DRIVER_ and PFX, use pr_debug.
Coalesce format.

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by:  Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/ixgb/ixgb.h

@@ -75,18 +75,6 @@ struct ixgb_adapter;
 #include "ixgb_ee.h"
 #include "ixgb_ids.h"
 
-#define PFX "ixgb: "
-
-#ifdef _DEBUG_DRIVER_
-#define IXGB_DBG(fmt, args...) printk(KERN_DEBUG PFX fmt, ##args)
-#else
-#define IXGB_DBG(fmt, args...)				\
-do {							\
-	if (0)						\
-		printk(KERN_DEBUG PFX fmt, ##args);	\
-} while (0)
-#endif
-
 /* TX/RX descriptor defines */
 #define DEFAULT_TXD      256
 #define MAX_TXD         4096

drivers/net/ethernet/intel/ixgb/ixgb_main.c

@@ -2068,8 +2068,8 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter, int *work_done, int work_to_do)
 
 			/* All receives must fit into a single buffer */
 
-			IXGB_DBG("Receive packet consumed multiple buffers "
-					 "length<%x>\n", length);
+			pr_debug("Receive packet consumed multiple buffers length<%x>\n",
+				 length);
 
 			dev_kfree_skb_irq(skb);
 			goto rxdesc_done;