[POWERPC] Don't special case pci_domain_nr() for iSeries

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 78cdb70..5a9d4c7 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -115,15 +115,10 @@
  */
 int pci_domain_nr(struct pci_bus *bus)
 {
-	if (firmware_has_feature(FW_FEATURE_ISERIES))
-		return 0;
-	else {
-		struct pci_controller *hose = pci_bus_to_host(bus);
+	struct pci_controller *hose = pci_bus_to_host(bus);
 
-		return hose->global_number;
-	}
+	return hose->global_number;
 }
-
 EXPORT_SYMBOL(pci_domain_nr);
 
 #ifdef CONFIG_PPC_OF