chore: audit all components (#2)

Reviewed-on: #2

crates/editor/tests/diff_view.rs

@@ -226,12 +226,6 @@ fn rows_render_virtualized_and_the_view_jumps_to_the_first_change() {
     );
 }
 
-#[test]
-fn identical_versions_produce_no_rows() {
-    let rows = diff_rows(OLD, OLD, Language::Rust);
-    assert!(rows.is_empty(), "identical versions have no diff to show");
-}
-
 #[test]
 fn set_versions_re_diffs() {
     let mut cx = TestAppContext::single();

crates/editor/tests/markdown.rs

@@ -241,13 +241,6 @@ fn nested_code_and_tables_carry_indent_and_quote() {
     ));
 }
 
-#[test]
-fn task_markers_carry_their_checked_state() {
-    let blocks = parse_body("- [ ] todo\n- [x] done\n");
-    assert_eq!(item_of(&blocks, 0).0, ListMarker::Task(false));
-    assert_eq!(item_of(&blocks, 1).0, ListMarker::Task(true));
-}
-
 #[test]
 fn quotes_mark_their_paragraphs_and_lists() {
     let blocks = parse_body("> quoted\n>\n> - listed\n\nplain");