Remove window.status plumbing, it's unused and the spec says it's a dummy

third_party/WebKit/LayoutTests/fast/dom/assign-to-window-status.html

-<script>
-if (window.testRunner) {
-    testRunner.dumpAsText();
-    testRunner.dumpStatusCallbacks();
-}
-
-function log(s)
-{
-    document.getElementById("console").innerHTML += "<li>" + s + "</li>";
-}
-
-function shouldBe(a, b)
-{
-    var evalA, evalB;
-    try {
-        evalA = eval(a);
-        evalB = eval(b);
-    } catch(e) {
-        evalA = e;
-    }
-
-    var message = (evalA === evalB)
-                    ? "PASS: " + a + " should be '" + evalB + "' and is."
-                    : "*** FAIL: " + a + " should be '" + evalB + "' but instead is " + evalA + ". ***";
-    log(message);
-}
-
-function test()
-{
-    shouldBe("window.status = 'set window.status'; window.status", "'set window.status'");
-    shouldBe("status = 'set status'", "'set status'");
-    shouldBe("window.status = 1; window.status", "'1'");
-    shouldBe("status = 2; status", "'2'");
-    shouldBe("window.status={toString:function(){ return 'object.toString'; }}; window.status", "'object.toString'");
-}
-</script>
-This tests that we can assign strings to the status property.
-<ul id="console"></ul>
-<script>
-test();
-</script>