CC Animation: Remove meaningless method from WebLayer.

third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp

Index: third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp b/third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp
index 6265be6295d51a6b701913e47a963f5318e00c82..f0e32bf0aac4449d93e7cd246539743bd417ee8d 100644
--- a/third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp
+++ b/third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp
@@ -1119,9 +1119,6 @@ bool GraphicsLayer::addAnimation(PassOwnPtr<WebCompositorAnimation> popAnimation
     OwnPtr<WebCompositorAnimation> animation(std::move(popAnimation));
     ASSERT(animation);
     platformLayer()->setAnimationDelegate(this);
-
-    // Remove any existing animations with the same animation id and target property.
-    platformLayer()->removeAnimation(animation->id(), animation->targetProperty());
     return platformLayer()->addAnimation(animation.leakPtr());
 }