The glyphs from SalLayout already have the correct position, so
one doesn't have to advance them.
This is why PS glyphs were positioned "off-by-one", which is
especially visible, if your test document has words with spaces.
"dm d" was almost rendered / printed as "d md".

This is a regression from commit 2325f9ac ("fix bug in
GlyphSet::DrawGlyph"), which assumed the dead / unused code was
a bug, introduced by commit b157b82a ("Use GlyphItem in more
places"), which out of luck, seem to have been correct.

Since nobody uses the advance anywhere, just drop the parameter.

Change-Id: I40e8f99a98f84d48446a9190566af8cfe441cd88
Reviewed-on: https://gerrit.libreoffice.org/59510Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>
Tested-by: Jan-Marek Glogowski <glogow@fbihome.de>