Remove no longer used methods nextAncestorSibling() from NodeTraversal.h

Source/core/dom/NodeTraversal.cpp

Index: Source/core/dom/NodeTraversal.cpp
diff --git a/Source/core/dom/NodeTraversal.cpp b/Source/core/dom/NodeTraversal.cpp
index 631a8b9c741b27c4473e41036afa58f1a4d37429..e9f9833147f59e4dba91771ed63d4e3891c340f4 100644
--- a/Source/core/dom/NodeTraversal.cpp
+++ b/Source/core/dom/NodeTraversal.cpp
@@ -74,29 +74,6 @@ Node* nextIncludingPseudoSkippingChildren(const Node& current, const Node* stayW
     return 0;
 }
 
-Node* nextAncestorSibling(const Node& current)
-{
-    ASSERT(!current.nextSibling());
-    for (Node* parent = current.parentNode(); parent; parent = parent->parentNode()) {
-        if (parent->nextSibling())
-            return parent->nextSibling();
-    }
-    return 0;
-}
-
-Node* nextAncestorSibling(const Node& current, const Node* stayWithin)
-{
-    ASSERT(!current.nextSibling());
-    ASSERT(current != stayWithin);
-    for (Node* parent = current.parentNode(); parent; parent = parent->parentNode()) {
-        if (parent == stayWithin)
-            return 0;
-        if (parent->nextSibling())
-            return parent->nextSibling();
-    }
-    return 0;
-}
-
 Node* previous(const Node& current, const Node* stayWithin)
 {
     if (current == stayWithin)