Don't transfer indefinite height: stretch to inline axis (#34557)

Consider this testcase:
```html
<canvas style="aspect-ratio: 1; height: stretch; background: cyan"
        width="200" height="100"></canvas>
```

To compute the intrinsic inline sizes we were treating `height: stretch`
as the natural height (100px) and then transferring that to the inline
axis through the preferred aspect ratio. So the element was 100px wide.

However, an indefinite `stretch` should be treated as an automatic size,
which wouldn't be transferred to the inline axis.

The fix actually makes the code slightly simpler.

Signed-off-by: Oriol Brufau <obrufau@igalia.com>

tests/wpt/meta/MANIFEST.json

@@ -575775,7 +575775,7 @@
       ]
      ],
      "keyword-sizes-on-replaced-element.html": [
-      "e26c1b7d6ac38858fd7a941a690ea01e6005c38c",
+      "8863ef491570c4d194bbb4b1d03a6e12367d4ff3",
       [
        null,
        {}