Only do a single pre-pass on the full document pulling out both setupfile and all other in-buffer settings.

Previously we made a separate pass just to find setupfile and then we pulled the in-buffer settings from everything.

src/parser/mod.rs

@@ -34,7 +34,6 @@ mod planning;
 mod property_drawer;
 mod radio_link;
 mod regular_link;
-mod setup_file;
 pub mod sexp;
 mod statistics_cookie;
 mod subscript_and_superscript;