Don't offer to download EOL OS's
Please don't show End of Life (EOL) operating systems in the Download an OS feature.
- It clutters the list, making it more difficult for most people to find the distro they are actually interested in.
- The EOL distros are unsupported and I think the distros would prefer that EOL distros not be advertised.
- At least for Ubuntu, download links for EOL versions are likely to be wrong. This is because at EOL, the ISOs are moved to an old-releases.ubuntu.com server. While the osinfo-db data can be updated, it will likely to take a bit of time before that happens.
osinfo-db provides an optional eol-date field. For instance, for Ubuntu 14.04 LTS, it's
<eol-date>2019-04-17</eol-date>