[merge] remove redundant implementation of "reversed"

[Denys Duchier]

Denys Duchier <duchier at ps.uni-sb.de> writes:

> "reversed" is standard in Python 2.4.  The redundant implementation in
> bzr can be removed.
>
> Available as revision 1493 in branch:
>
>               http://delta.univ-orleans.fr/~duchier/bzr/

of course, I meant:

        http://delta.univ-orleans.fr/~duchier/bzr/bzr.cleanup

--Denys