Delete unused AnimatableValue code

third_party/WebKit/Source/core/animation/animatable/AnimatableShapeValue.cpp

Index: third_party/WebKit/Source/core/animation/animatable/AnimatableShapeValue.cpp
diff --git a/third_party/WebKit/Source/core/animation/animatable/AnimatableShapeValue.cpp b/third_party/WebKit/Source/core/animation/animatable/AnimatableShapeValue.cpp
index 8189729b0aaaff1b0cf1f40f559f1cf623d8215a..15961864a817c17700d58b90f5cd10fb96232859 100644
--- a/third_party/WebKit/Source/core/animation/animatable/AnimatableShapeValue.cpp
+++ b/third_party/WebKit/Source/core/animation/animatable/AnimatableShapeValue.cpp
@@ -32,34 +32,6 @@
 
 namespace blink {
 
-bool AnimatableShapeValue::usesDefaultInterpolationWith(
-    const AnimatableValue* value) const {
-  const AnimatableShapeValue* shapeValue = toAnimatableShapeValue(value);
-
-  if (m_shape->type() != ShapeValue::Shape ||
-      shapeValue->m_shape->type() != ShapeValue::Shape ||
-      m_shape->cssBox() != shapeValue->m_shape->cssBox())
-    return true;
-
-  const BasicShape* fromShape = this->m_shape->shape();
-  const BasicShape* toShape = shapeValue->m_shape->shape();
-
-  return !fromShape->canBlend(toShape);
-}
-
-PassRefPtr<AnimatableValue> AnimatableShapeValue::interpolateTo(
-    const AnimatableValue* value,
-    double fraction) const {
-  if (usesDefaultInterpolationWith(value))
-    return defaultInterpolateTo(this, value, fraction);
-
-  const AnimatableShapeValue* shapeValue = toAnimatableShapeValue(value);
-  const BasicShape* fromShape = this->m_shape->shape();
-  const BasicShape* toShape = shapeValue->m_shape->shape();
-  return AnimatableShapeValue::create(ShapeValue::createShapeValue(
-      toShape->blend(fromShape, fraction), shapeValue->m_shape->cssBox()));
-}
-
 bool AnimatableShapeValue::equalTo(const AnimatableValue* value) const {
   const ShapeValue* shape = toAnimatableShapeValue(value)->m_shape.get();
   return m_shape == shape || (m_shape && shape && *m_shape == *shape);