#627: settle bound paints once per open, not also in the native loader

DocState::new already settles every opened document (native files, branches and live joins
included); the .fig/REST path keeps its settlement in link_instances for file.import into an
open document.

crates/engine/src/cmd/file.rs

@@ -520,7 +520,6 @@ fn load_with(
             if loaded.doc.name.is_empty() {
                 loaded.doc.name = file_stem(name_hint);
             }
-            super::styles::apply_paint_bindings_on_load(&mut loaded.doc);
             Ok((loaded, false))
         }
     }