linux-thread.o no longer used

[Kevin Buettner]

On Dec 9,  2:29pm, Andrew Cagney wrote:

> Here I think the code should just go.  We'll (well I'll) otherwize make 
> the same mestake again of not realizing that something is using legacy code.
> 
> This is different to the target case.  In the above, functionality was 
> replaced.  With deleted targets, we're trying to remove targets.

That's fine.  I don't have strong feelings about it since I can
make local copies of the files that I want to refer to.  Plus, they
are still in the repository (albeit, in the Attic) which means that
we can still get at them if we want to.

Kevin