cc : Delete code not used outside tests related to impl-only animations

cc/animation/animation_host.cc

Index: cc/animation/animation_host.cc
diff --git a/cc/animation/animation_host.cc b/cc/animation/animation_host.cc
index 66ebaa482f038abfe391f0a740c934022f1587b3..71f9c0ccecce1067c88d9973ff8f109d965659ec 100644
--- a/cc/animation/animation_host.cc
+++ b/cc/animation/animation_host.cc
@@ -384,26 +384,6 @@ bool AnimationHost::HasAnyAnimationTargetingProperty(
   return !!element_animations->GetAnimation(property);
 }
 
-bool AnimationHost::FilterIsAnimatingOnImplOnly(ElementId element_id) const {
-  auto element_animations = GetElementAnimationsForElementId(element_id);
-  if (!element_animations)
-    return false;
-
-  Animation* animation =
-      element_animations->GetAnimation(TargetProperty::FILTER);
-  return animation && animation->is_impl_only();
-}
-
-bool AnimationHost::OpacityIsAnimatingOnImplOnly(ElementId element_id) const {
-  auto element_animations = GetElementAnimationsForElementId(element_id);
-  if (!element_animations)
-    return false;
-
-  Animation* animation =
-      element_animations->GetAnimation(TargetProperty::OPACITY);
-  return animation && animation->is_impl_only();
-}
-
 bool AnimationHost::ScrollOffsetIsAnimatingOnImplOnly(
     ElementId element_id) const {
   auto element_animations = GetElementAnimationsForElementId(element_id);
@@ -415,16 +395,6 @@ bool AnimationHost::ScrollOffsetIsAnimatingOnImplOnly(
   return animation && animation->is_impl_only();
 }
 
-bool AnimationHost::TransformIsAnimatingOnImplOnly(ElementId element_id) const {
-  auto element_animations = GetElementAnimationsForElementId(element_id);
-  if (!element_animations)
-    return false;
-
-  Animation* animation =
-      element_animations->GetAnimation(TargetProperty::TRANSFORM);
-  return animation && animation->is_impl_only();
-}
-
 bool AnimationHost::HasFilterAnimationThatInflatesBounds(
     ElementId element_id) const {
   auto element_animations = GetElementAnimationsForElementId(element_id);