Update documentation and cleanup impls for localToSVGParentTransform()

third_party/WebKit/Source/core/layout/LayoutObject.cpp

Index: third_party/WebKit/Source/core/layout/LayoutObject.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutObject.cpp b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
index 495abb158f8491cada883438c03bb6ec6b2d065f..99cc551730753f6dbeabc5c5931ce786b4c2bd41 100644
--- a/third_party/WebKit/Source/core/layout/LayoutObject.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
@@ -3284,11 +3284,6 @@ AffineTransform LayoutObject::localSVGTransform() const {
   return identity;
 }
 
-const AffineTransform& LayoutObject::localToSVGParentTransform() const {
-  static const AffineTransform identity;
-  return identity;
-}
-
 bool LayoutObject::nodeAtFloatPoint(HitTestResult&,
                                     const FloatPoint&,
                                     HitTestAction) {