Stop using script-tests in fast/dom/.

third_party/WebKit/LayoutTests/fast/dom/TreeWalker/script-tests/traversal-skip-most.js

-description('Test TreeWalker with skipping');
-
-var walker;
-var testElement = document.createElement("div");
-testElement.innerHTML='<div id="A1"><div id="B1" class="keep"></div><div id="B2">this text matters</div><div id="B3" class="keep"></div></div>';
-
-var filter = {
-  acceptNode: function(node) {
-    if (node.className == 'keep')
-      return NodeFilter.FILTER_ACCEPT;
-
-    return NodeFilter.FILTER_SKIP;
-  }
-}
-
-debug("<br>Testing nextSibling")
-walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, filter, false);
-shouldBe("walker.firstChild(); walker.currentNode.id", "'B1'");
-shouldBe("walker.nextSibling(); walker.currentNode.id", "'B3'");
-
-debug("<br>Testing previousSibling")
-walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, filter, false);
-walker.currentNode = testElement.querySelectorAll('#B3')[0];
-shouldBe("walker.previousSibling(); walker.currentNode.id", "'B1'");