cc: Delete unused AnimationCurve::AffectsScale and related code

cc/animation/animation_player.cc

Index: cc/animation/animation_player.cc
diff --git a/cc/animation/animation_player.cc b/cc/animation/animation_player.cc
index de5801e74f423e2638bb7402114a7811deec5cc3..b98e9388ae5d5dca72e84687ee509c9d13ccf962 100644
--- a/cc/animation/animation_player.cc
+++ b/cc/animation/animation_player.cc
@@ -823,21 +823,6 @@ bool AnimationPlayer::TransformAnimationBoundsForBox(const gfx::BoxF& box,
   return true;
 }
 
-bool AnimationPlayer::HasAnimationThatAffectsScale() const {
-  for (size_t i = 0; i < animations_.size(); ++i) {
-    if (animations_[i]->is_finished() ||
-        animations_[i]->target_property() != TargetProperty::TRANSFORM)
-      continue;
-
-    const TransformAnimationCurve* transform_animation_curve =
-        animations_[i]->curve()->ToTransformAnimationCurve();
-    if (transform_animation_curve->AffectsScale())
-      return true;
-  }
-
-  return false;
-}
-
 bool AnimationPlayer::HasOnlyTranslationTransforms(
     ElementListType list_type) const {
   for (size_t i = 0; i < animations_.size(); ++i) {