Ealier version of PDF standard allowed for not embedding the so called
standard PostScript fonts in the PDF files and all PDF readers had to
include them or a "suitable substitute". This behaviour had many issues
and is deprecated for 10 years now. The current version of PDF spec
says:

  Beginning with PDF 1.5, the special treatment given to the standard 14
  fonts is deprecated. Conforming writers should represent all fonts
  using a complete font descriptor. For backwards capability, conforming
  readers shall still provide the special treatment identified for the
  standard 14 fonts.

This commits removes support for not embedding these fonts, and the, now
redundant, option to embed them.

This has the side effect of elimanating the cause of fdo#66108 and
fdo#41547.

Change-Id: I4f1fc4137a2de7baeef9e504f2e4f84fbec0a491
Reviewed-on: https://gerrit.libreoffice.org/4495Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>