staging/phison: use module_pci_driver macro

remove the duplication of module_pci_driver and use this macro instead

module_pci_driver macro does the same things as the code below does

static int __init pci_test_dev_init(void)
{
       return pci_register_driver(&pci_test_driver_ops);
}

static void __exit pci_test_dev_exit(void)
{
       pci_unregister_driver(&pci_test_driver_ops);
}

module_init(pci_test_dev_init);
module_exit(pci_test_dev_exit);

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/phison/phison.c

@@ -87,18 +87,7 @@ static struct pci_driver phison_pci_driver = {
 #endif
 };
 
-static int __init phison_ide_init(void)
-{
-	return pci_register_driver(&phison_pci_driver);
-}
-
-static void __exit phison_ide_exit(void)
-{
-	pci_unregister_driver(&phison_pci_driver);
-}
-
-module_init(phison_ide_init);
-module_exit(phison_ide_exit);
+module_pci_driver(phison_pci_driver);
 
 MODULE_AUTHOR("Evan Ko");
 MODULE_DESCRIPTION("PCIE driver module for PHISON PS5000 E-BOX");