[DSSSL] Suppressing page numbers

[Stephane Bortzmeyer <bortzmeyer@nic.fr>]

For a conference, the editor asks me to suppress page numbers in my
paper (because he will handle page numbering and ToC). I cannot find a
way to do it with the modular DSSSL stylesheets. There is apparently
no parameter to toggle (and I assume that they are done by jadetex,
anyway, not by DSSSL).