Removing unused method TransformationMatrix::rectToRect()

Source/platform/transforms/TransformationMatrix.h

Index: Source/platform/transforms/TransformationMatrix.h
diff --git a/Source/platform/transforms/TransformationMatrix.h b/Source/platform/transforms/TransformationMatrix.h
index 13b7c2a3bb49962aa3df1838be34c51aa6d5b670..4f3d6e1fe4529a25ce0e368e89ec4225db91a720 100644
--- a/Source/platform/transforms/TransformationMatrix.h
+++ b/Source/platform/transforms/TransformationMatrix.h
@@ -236,9 +236,6 @@ public:
     TransformationMatrix& applyPerspective(double p);
     bool hasPerspective() const { return m_matrix[2][3] != 0.0f; }
 
-    // returns a transformation that maps a rect to a rect
-    static TransformationMatrix rectToRect(const FloatRect&, const FloatRect&);
-
     bool isInvertible() const;
 
     // This method returns the identity matrix if it is not invertible.