We don't need this and it is probably wasting build time and storage.
According to documentation:
"This technique is useful if you want to create a mirror server. If not,
however, the technique can simply waste time during the build."
https://www.yoctoproject.org/docs/3.1/mega-manual/mega-manual.html#faq
FAQ: 35.22
This structure was storing license per architecture instead of all
licenses in the same directory. It requires a patch in yocto code to
look for licenses at this location.
Alexandre Bard
Marc Mattmueller