[yocto] adtrepo clean-up

[Michael Halstead]

After examining download logs it appears we could safely delete versions
1.0-1.3.x from http://adtrepo.yoctoproject.org/. They are only accessed
by web crawlers at this point. Removing them would make room for more
releases and save on hardware budget.

Are there any reasons to keep versions 1.0-1.3.x in
http://adtrepo.yoctoproject.org/?

-- 
Michael Halstead
Yocto Project / SysAdmin