net: ethernet: aquantia: remove redundant err check

The check on err < 0 is redundant and can be removed. Detected
by CoverityScan, CID#1398321 ("Logically Dead Code")
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c

@@ -145,8 +145,6 @@ int aq_pci_func_init(struct aq_pci_func_s *self)
 		}
 	}
 
-	if (err < 0)
-		goto err_exit;
 	for (i = 0; i < self->aq_hw_caps.msix_irqs; i++)
 		self->msix_entry[i].entry = i;