fix #436: removing obsolete files

[Mte90]

As #436

[Mte90]

ping

[Halleck45]

Hi,

these files are here to avoid to broke production CI pipelines using these legacy files (when CI download directly files from github). If we remove them, we'll break ton of pipelines.

I prefer to avoid to remove them. But we can add a README.md and fix the release documentation.

[Mte90]

Maybe also add a readme in the folder that explain the purpose. I don't remember how I found those files as a lot of months are passed but I think that I was looking for a tarball or a debian package and found those obsolete files.

[Halleck45]

I've just checked, and I confused with the build directory. I've just opened #458 to fix it.

Thanks for your help !