transparent ledger lines?

[B . Gibson]

Thank you for such a great software!
I have been trying to make ledger lines transparent when using 
\hideNotes.  I found a mail related to that problem
(http://lists.gnu.org/archive/html/lilypond-user/2003-06/msg00228.html)
and I was wondering if a solution had been found. I thought that
" \override Staff.LedgerLineSpanner #'transparent = ##t " would work.

Thanks

B. Gibson

lilypond 2.3.16
mac X 10.3.5

\paper {
 linewidth = 160 \mm
 indent = 0.0\mm
 raggedright = ##t
}
{
c'''2
\hideNotes
\override Staff.LedgerLineSpanner #'transparent = ##t
c'''
}