dock: fix eject request process (2.6.27-rc1 regression)

commit 2a7feab28d3fc060d320eaba192e49dad1079b7e introduces a bug.
My thinkpad actually will send an eject_request and we should follow the
eject process to finish the eject, otherwise system still thinks the bay
is present.
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

drivers/acpi/dock.c

@@ -575,11 +575,6 @@ static int handle_eject_request(struct dock_station *ds, u32 event)
 	 */
 	dock_event(ds, event, UNDOCK_EVENT);
 
-	if (!dock_present(ds)) {
-		complete_undock(ds);
-		return -ENODEV;
-	}
-
 	hotplug_dock_devices(ds, ACPI_NOTIFY_EJECT_REQUEST);
 	undock(ds);
 	eject_dock(ds);