Delete unused AnimatableValue code

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

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/animation/animatable/AnimatableDoubleAndBool.h"
 
-#include "platform/animation/AnimationUtilities.h"
 
 namespace blink {
 
-bool AnimatableDoubleAndBool::usesDefaultInterpolationWith(
-    const AnimatableValue* value) const {
-  const AnimatableDoubleAndBool* other = toAnimatableDoubleAndBool(value);
-  return flag() != other->flag();
-}
-
-PassRefPtr<AnimatableValue> AnimatableDoubleAndBool::interpolateTo(
-    const AnimatableValue* value,
-    double fraction) const {
-  const AnimatableDoubleAndBool* other = toAnimatableDoubleAndBool(value);
-  if (flag() == other->flag())
-    return AnimatableDoubleAndBool::create(
-        blend(m_number, other->m_number, fraction), flag());
-
-  return defaultInterpolateTo(this, value, fraction);
-}
-
 bool AnimatableDoubleAndBool::equalTo(const AnimatableValue* value) const {
   const AnimatableDoubleAndBool* other = toAnimatableDoubleAndBool(value);
-  return toDouble() == other->toDouble() && flag() == other->flag();
+  return m_number == other->m_number && m_flag == other->m_flag;
 }
 
 }  // namespace blink