remove automated-engraving*?

[Mark Polesky]

Is automated-engraving.itexi being used anymore?  Graham
removed these lines from essay.tely with commit 859f9f7 on
Dec 5 2009:

* automated-engraving:: Essay on Automated engraving.
@include automated-engraving.itexi

IIUC, it has been entirely replaced with similar material in
the Essay.  If so, should we get rid of these?

automated-engraving.itexi
automated-engraving/*

BTW, doing `git grep -l 'automated-engraving'` returns with:

Documentation/GNUmakefile
Documentation/automated-engraving.itexi
Documentation/es/web/news.itexi
Documentation/nl/web.texi
Documentation/web/news.itexi
python/auxiliar/buildlib.py
python/auxiliar/postprocess_html.py

- Mark