igb: remove unnecessary break after return

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c
index 72b454c..236a618 100644
--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
@@ -579,7 +579,6 @@
 		break;
 	default:
 		return -E1000_ERR_MAC_INIT;
-		break;
 	}
 
 	/* Set media type */