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>
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
index 0024788..82aaa79 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -2068,8 +2068,8 @@
 
 			/* 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;