Remove unused AnimatableValue types

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

Index: third_party/WebKit/Source/core/animation/animatable/AnimatableFontVariationSettings.cpp
diff --git a/third_party/WebKit/Source/core/animation/animatable/AnimatableFontVariationSettings.cpp b/third_party/WebKit/Source/core/animation/animatable/AnimatableFontVariationSettings.cpp
deleted file mode 100644
index 1abe67525186ba6d68fad5f2602e4e3cfebba2ef..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/core/animation/animatable/AnimatableFontVariationSettings.cpp
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2017 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/AnimatableFontVariationSettings.h"
-
-namespace blink {
-
-bool AnimatableFontVariationSettings::EqualTo(
-    const AnimatableValue* value) const {
-  return DataEquivalent(settings_,
-                        ToAnimatableFontVariationSettings(value)->settings_);
-}
-
-}  // namespace blink