Remove Sky tests that we don't intend to port to the new world

sky/tests/lowlevel/bug-438036.sky

Index: sky/tests/lowlevel/bug-438036.sky
diff --git a/sky/tests/lowlevel/bug-438036.sky b/sky/tests/lowlevel/bug-438036.sky
deleted file mode 100644
index 53f57514687a886ff9f417f5dee74f30aa68a208..0000000000000000000000000000000000000000
--- a/sky/tests/lowlevel/bug-438036.sky
+++ /dev/null
@@ -1,35 +0,0 @@
-<sky>
-<style>
-  div { width: 100px; height: 100px; background-color: red; }
-  div.wide { width: 200px; }
-  div#high { height: 200px; }
-</style>
-<div></div>
-<div></div>
-<script>
-import "../resources/third_party/unittest/unittest.dart";
-import "../resources/unit.dart";
-
-import "dart:sky";
-
-void main() {
-  initUnit();
-
-  test("should grow width to 200px", () {
-    var target = document.querySelector('div');
-
-    target.classList.add("wide");
-    expect(window.getComputedStyle(target)["width"],
-           equals("200px"));
-  });
-
-  test("should grow height to 200px", () {
-    var target = document.querySelectorAll('div')[1];
-
-    target.setAttribute("id", "high");
-    expect(window.getComputedStyle(target)["height"],
-           equals("200px"));
-  });
-}
-</script>
-</sky>