[PATCH roland/Versions.def] Get rid of Versions.def source file

[Roland McGrath]

> Which Versions file should be used when?

Technically it doesn't matter.  Practically, as long as it gets a comment
explaining its purpose, it's unlikely to cause a maintenance headache
wherever it is.  What seems most sensible is for it to be in a Versions
file in the same directory as the (first) source file that causes the need
for it.  That would be sysdeps/generic/ at the moment, but I don't know any
reason why those files (or any files other than headers) shouldn't be in
elf/ (or whatever appropriate subdir) rather than sysdeps/generic/.  So
maybe first clean things up by moving the source files and Makefile bits to
elf/, and then add GLIBC_2.2.5 to elf/Versions.  (Actually it doesn't
matter which order those are done in, but cleanup-first is usually the best
way to avoid cleanup-forgotten.)

I'm a bit confused about the situation on mips.  Was its check-abi already
broken before my Versions.def change?  The intent of that change was that
it have no material effect on any build output.


Thanks,
Roland