Revert "Animations: Pass animation timing function through to compositor."

Source/core/animation/CompositorAnimationsTestHelper.h

Index: Source/core/animation/CompositorAnimationsTestHelper.h
diff --git a/Source/core/animation/CompositorAnimationsTestHelper.h b/Source/core/animation/CompositorAnimationsTestHelper.h
index 24392c36750952ce639cda139aef9041118740c8..541c1c1de83443cf2f8cebf45df65b086dda908c 100644
--- a/Source/core/animation/CompositorAnimationsTestHelper.h
+++ b/Source/core/animation/CompositorAnimationsTestHelper.h
@@ -109,9 +109,6 @@ public:
     MOCK_METHOD2_T(add, void(const KeyframeType&, WebCompositorAnimationCurve::TimingFunctionType));
     MOCK_METHOD5_T(add, void(const KeyframeType&, double, double, double, double));
 
-    MOCK_METHOD4(setTimingFunction, void(double, double, double, double));
-    MOCK_METHOD1(setTimingFunction, void(WebCompositorAnimationCurve::TimingFunctionType));
-
     MOCK_CONST_METHOD1_T(getValue, float(double)); // Only on WebFloatAnimationCurve, but can't hurt to have here.
 
     virtual WebCompositorAnimationCurve::AnimationCurveType type() const { return CurveId; };