No images for AMD64!

[Harry Braviner <harry.braviner@gmail.com>]

All the subdirectories of http://cdimage.debian.org/cdimage/weekly-builds/amd64/ are empty!

Also, the amd64 links for the "testing" distribution from http://www.debian.org/CD/jigdo-cd/#which are all dead. It seems to be currently impossible to get a testing image for amd64.