Revert "Include the scrollable overflow of a child box if either its parent or child has overflow: visible (#38443)" (#38546)

This reverts commit dcb90bb85e.

This broke scrollable overflow calculation in the following case:

```
<div id="foo" style="width: 200px; height: 200px; outline: solid; overflow: auto;">
    <div style="height: 5000px; background: pink;">hello</div>
</div>
```

In this case the overflow is propagating through the `overflow: auto`
`<div>` and into the parents. When dumping the flow tree I see the root
node being 5000 pixels tall. It's unclear why this change didn't break
any tests, so it's likely that we need to add a test for this case.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>

components/layout/fragment_tree/positioning_fragment.rs

@@ -79,7 +79,7 @@ impl PositioningFragment {
             |acc, child| {
                 acc.union(
                     &child
-                        .calculate_scrollable_overflow_for_parent(None)
+                        .calculate_scrollable_overflow_for_parent()
                         .translate(self.rect.origin.to_vector()),
                 )
             },