bug#70254: withershins - failed to build

[Ricardo Wurmus]

Hi,

> While refreshing and checking packages in (gnu packages code) I've
> noticed that withershins is no longer buildable, it looks like the
> source is not compatible with a new version of binutils.
>
> One more thing - the project does not exist by
> <https://github.com/cameronwhite/withershins> but I could find it in
> <https://github.com/artisdom/withershins>.
>
> Cc: Ricardo as he was the last person who has added and updated the
> package.

We only ever needed it for powertabeditor.  It no longer uses the
package, so I just removed it.

Thanks for letting me know!

-- 
Ricardo