Removing cygwin32-*, cygwin64-*

[Andrew Schulman]

> Is anyone using the cygwin32- and/or cygwin64-* cross-compiling 
> toolchain for anything besides cross-building cygwin itself?  I would 
> like to remove most of these from the distro if at all possible.

FWIW, I've tried to cross-compile some of my packages between i386 and x86_64,
and it's never worked. The build always fails for one reason or another that I
can't solve.  So I gave up and no, I don't use them any more.