Revert "web: wip v3"

This reverts commit 94e65221d533709d5ea3af18ae5d9704f434fa5d.

I didn't intend to push that one; it's, well, WIP.

git-svn-id: https://svn.code.sf.net/p/mingw-w64/code@6287 4407c894-4637-0410-b4f5-ada5f102cad1
web: split the download page into one php file per download group.


git-svn-id: https://svn.code.sf.net/p/mingw-w64/code@6288 4407c894-4637-0410-b4f5-ada5f102cad1