Remove some dead code in dom/

Source/core/dom/DocumentMarkerController.cpp

Index: Source/core/dom/DocumentMarkerController.cpp
diff --git a/Source/core/dom/DocumentMarkerController.cpp b/Source/core/dom/DocumentMarkerController.cpp
index 72e0133386837481c3deaa96ea610f5da47525ed..1d855e8c2eaa7a52609ba878fe598e4b89d458ce 100644
--- a/Source/core/dom/DocumentMarkerController.cpp
+++ b/Source/core/dom/DocumentMarkerController.cpp
@@ -109,17 +109,6 @@ void DocumentMarkerController::addMarker(Range* range, DocumentMarker::MarkerTyp
 
 }
 
-void DocumentMarkerController::addMarkerToNode(Node* node, unsigned startOffset, unsigned length, DocumentMarker::MarkerType type)
-{
-    addMarker(node, DocumentMarker(type, startOffset, startOffset + length));
-}
-
-void DocumentMarkerController::addMarkerToNode(Node* node, unsigned startOffset, unsigned length, DocumentMarker::MarkerType type, PassRefPtr<DocumentMarkerDetails> details)
-{
-    addMarker(node, DocumentMarker(type, startOffset, startOffset + length, details));
-}
-
-
 void DocumentMarkerController::addTextMatchMarker(const Range* range, bool activeMatch)
 {
     // Use a TextIterator to visit the potentially multiple nodes the range covers.