Stop using script-tests in fast/dom/.

third_party/WebKit/LayoutTests/fast/dom/TreeWalker/script-tests/previousSiblingLastChildSkip.js

-description('Test for a specific problem with previousSibling that failed in older versions of WebKit.');
-
-var testElement = document.createElement("div");
-testElement.innerHTML='<div id="A1"><div id="B1"><div id="C1"></div><div id="C2"><div id="D1"></div><div id="D2"></div></div></div><div id="B2"><div id="C3"></div><div id="C4"></div></div></div>';
-
-function filter(node)
-{
-    if (node.id == "B1")
-        return NodeFilter.FILTER_SKIP;
-    return NodeFilter.FILTER_ACCEPT;
-}
-
-var walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, filter, false);
-
-shouldBe("walker.firstChild(); walker.currentNode.id", "'A1'");
-shouldBe("walker.nextNode(); walker.currentNode.id", "'C1'");
-shouldBe("walker.nextNode(); walker.currentNode.id", "'C2'");
-shouldBe("walker.nextNode(); walker.currentNode.id", "'D1'");
-shouldBe("walker.nextNode(); walker.currentNode.id", "'D2'");
-shouldBe("walker.nextNode(); walker.currentNode.id", "'B2'");
-shouldBe("walker.previousSibling(); walker.currentNode.id", "'C2'");