Let the unsettled-layout tests fail

Ignoring is for cost, not for status: a fuzzer earns it, a known defect
does not. Hiding this one behind an attribute turns a loud failure into a
quiet one nobody goes looking for.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

tests/unsettled.rs

@@ -51,7 +51,6 @@ fn plant(h: &mut Harness) -> Vec<WidgetId> {
 /// not a fixed point and comparing against it compares against a tree that
 /// has not settled.
 #[test]
-#[ignore = "fails: the first frame shapes the text at a width it does not have"]
 fn one_frame_is_enough() {
     let mut h = Harness::new((640, 900));
     let ids = plant(&mut h);
@@ -76,7 +75,6 @@ fn one_frame_is_enough() {
 }
 
 #[test]
-#[ignore = "fails for the same reason: the cold side has not settled either"]
 fn repainting_everything_moves_nothing() {
     let mut warm = Harness::new((640, 900));
     let ids = plant(&mut warm);