powerpc/eeh: Remove always-true tests in eeh_reset_device()

eeh_reset_device() tests the value of 'bus' more than once but the
only caller, eeh_handle_normal_device() does this test itself and will
never pass NULL.

So, remove the dead tests.

This should not change behaviour.
Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/kernel/eeh_driver.c

@@ -655,7 +655,7 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus,
 			pci_hp_remove_devices(bus);
 			pci_unlock_rescan_remove();
 		}
-	} else if (bus) {
+	} else {
 		eeh_pe_dev_traverse(pe, eeh_rmv_device, rmv_data);
 	}
 
@@ -708,7 +708,7 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus,
 			eeh_pe_state_clear(pe, EEH_PE_PRI_BUS);
 			pci_hp_add_devices(bus);
 		}
-	} else if (bus && rmv_data->removed) {
+	} else if (rmv_data->removed) {
 		pr_info("EEH: Sleep 5s ahead of partial hotplug\n");
 		ssleep(5);