Comment # 65 on bug 968405 from Michael Schr�der

I think having legacy and default makes things too complicated for the
packagers. I'm ok with Werner's proposal.

Two nitpicks:
1) I guess it should be %stop_on_removal for consistency
2) Please use %define instead of %global so that multiple subpacks can have
different settings (i.e. the macro reverts to the old value after expansion).

Cheers,
  Michael.