Remove most of visited link support.

sky/engine/core/animation/animatable/AnimatableValueTestHelper.cpp

Index: sky/engine/core/animation/animatable/AnimatableValueTestHelper.cpp
diff --git a/sky/engine/core/animation/animatable/AnimatableValueTestHelper.cpp b/sky/engine/core/animation/animatable/AnimatableValueTestHelper.cpp
index d00dfad3708d297a010f9911504bae7123d3db5b..e10c1d50de27e94d3d85ae911f9d808b9b047cd3 100644
--- a/sky/engine/core/animation/animatable/AnimatableValueTestHelper.cpp
+++ b/sky/engine/core/animation/animatable/AnimatableValueTestHelper.cpp
@@ -47,8 +47,7 @@ void PrintTo(const AnimatableClipPathOperation& animValue, ::std::ostream* os)
 void PrintTo(const AnimatableColor& animColor, ::std::ostream* os)
 {
     *os << "AnimatableColor("
-        << animColor.color().serialized().utf8().data() << ", "
-        << animColor.visitedLinkColor().serialized().utf8().data() << ")";
+        << animColor.color().serialized().utf8().data() << ")";
 }
 
 void PrintTo(const AnimatableImage& animImage, ::std::ostream* os)