junk in latest source RPMs

[Stephen Weeks]

> Some junk still in the latest version of the source RPMS:
> 
>     src/lib/mlton/basic/regexp.old.sml
>     src/benchmark/CM/...
>     src/lib/mlton/basic/TAGS
>     src/mlton/cps/TAGS
>     src/mlprof/symbol.dot

Fixed.

> I'm not sure if the following two are junk or not:
> 
>     src/basis-library/bind-basis
>     src/basis-library/build-basis

They are not.  They specify the order of files used to build the basis.

> The  following (and other junk) are probably just from SML/NJ, but still, the
> absyn.sml isn't even SML, it is  some  interim  version  between  SML/90  and
> SML/97 and uses an `abstraction' as an old version of :>.
> 
>     src/mlyacc/examples/fol/list.fol
>     src/mlyacc/examples/fol/link.sml
>     src/mlyacc/examples/fol/absyn.sml

I'm not sure what to do here.  Could delete examples/fol, fol, or do nothing.
One argument for doing nothing is that it really is a copy of someone else's
code, however broken.