Remove the check for the root dev. The required functionality is only

available in recent versions of libusb, and the check isn't really
needed anyway (as the check for vendor and product ID will cover that
as well).


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@479 81a1dc3b-b13d-400b-aceb-764788c761c2

usb_libusb.c

@@ -101,9 +101,6 @@ static int usbdev_open(char * port, long baud)
 
   for (bus = usb_busses; bus; bus = bus->next)
     {
-      if (bus->root_dev)
-	continue;
-
       for (dev = bus->devices; dev; dev = dev->next)
 	{
 	  udev = usb_open(dev);