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

public/platform/WebTransformAnimationCurve.h

Index: public/platform/WebTransformAnimationCurve.h
diff --git a/public/platform/WebTransformAnimationCurve.h b/public/platform/WebTransformAnimationCurve.h
index fa16988bd4612719c04577b4aa9390fb100e61fa..02cc752372c96114c657fb8e6b744c5999b7d12b 100644
--- a/public/platform/WebTransformAnimationCurve.h
+++ b/public/platform/WebTransformAnimationCurve.h
@@ -42,8 +42,6 @@ public:
     // Adds the keyframe with a custom, bezier timing function. Note, it is
     // assumed that x0 = y0 = 0, and x3 = y3 = 1.
     virtual void add(const WebTransformKeyframe&, double x1, double y1, double x2, double y2) = 0;
-    virtual void setTimingFunction(TimingFunctionType) = 0;
-    virtual void setTimingFunction(double x1, double y1, double x2, double y2) = 0;
 };
 
 } // namespace blink