remove outdated comments in get_scratch_document [skip ci]
remove outdated comments in get_scratch_document [skip ci]

asciidoctor/asciidoctor-pdf,dsisnero/asciidoctor-pdf,dsisnero/asciidoctor-pdf,asciidoctor/asciidoctor-pdf,mojavelinux/asciidoctor-pdf,mojavelinux/asciidoctor-pdf