[releng] (8 commits) ...convert-to-tarballs: simplify versions file generation

[Abderrahim Kitouni <akitouni src gnome org>]

Summary of changes:

  57b9db9... convert-to-tarballs: remove dead code (*)
  764c50d... convert-to-tarbals: factor out some utility functions (*)
  2c0cd35... tarball-conversion*.config: drop unused sites and modules (*)
  0b32a45... convert-to-tarballs: drop support for renames (*)
  e848be4... convert-to-tarballs: drop support for subdirs (*)
  bd60b67... use pythonic formatting syntax (*)
  cd34512... stop pretending we use CVS [!] to decide where to get thing (*)
  e0bf987... convert-to-tarballs: simplify versions file generation (*)

(*) This commit already existed in another branch; no separate mail sent