Removed not needed BuildRequires for docbook-toys in plain upstream Ghostscript 9.05 (bnc#735824). docbook-toys pulls in packages like texlive-bin-jadetex and texlive-jadetex so that witout docbook-toys it should avoid the current unresolvable: nothing provides ghostscript_x11 needed by texlive (currently only for x86_64 where a rebuild was triggered)