net: sundance: use module_pci_driver to simplify the code

Use the module_pci_driver() macro to make the code simpler
by eliminating module_init and module_exit calls.
Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/dlink/sundance.c

@@ -1982,17 +1982,4 @@ static struct pci_driver sundance_driver = {
 	.driver.pm	= &sundance_pm_ops,
 };
 
-static int __init sundance_init(void)
-{
-	return pci_register_driver(&sundance_driver);
-}
-
-static void __exit sundance_exit(void)
-{
-	pci_unregister_driver(&sundance_driver);
-}
-
-module_init(sundance_init);
-module_exit(sundance_exit);
-
-
+module_pci_driver(sundance_driver);