Revert "Enable Scroll Animation for RenderLayerScrollableArea"

Source/core/rendering/RenderLayerScrollableArea.cpp

Index: Source/core/rendering/RenderLayerScrollableArea.cpp
diff --git a/Source/core/rendering/RenderLayerScrollableArea.cpp b/Source/core/rendering/RenderLayerScrollableArea.cpp
index 1ce4940b3cb30b0fcb5555a8dabad331be8a10e9..149006a65291fca38e147bc2b6a117b578e8a95a 100644
--- a/Source/core/rendering/RenderLayerScrollableArea.cpp
+++ b/Source/core/rendering/RenderLayerScrollableArea.cpp
@@ -49,7 +49,6 @@
 #include "core/editing/FrameSelection.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
-#include "core/frame/Settings.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/inspector/InspectorTraceEvents.h"
@@ -479,20 +478,6 @@ IntPoint RenderLayerScrollableArea::lastKnownMousePosition() const
     return box().frame() ? box().frame()->eventHandler().lastKnownMousePosition() : IntPoint();
 }
 
-bool RenderLayerScrollableArea::scrollAnimatorEnabled() const
-{
-    return box().frame()->settings() && box().frame()->settings()->scrollAnimatorEnabled();
-}
-
-bool RenderLayerScrollableArea::scheduleAnimation()
-{
-    if (HostWindow* window = box().frameView()->hostWindow()) {
-        window->scheduleAnimation();
-        return true;
-    }
-    return false;
-}
-
 bool RenderLayerScrollableArea::shouldSuspendScrollAnimations() const
 {
     RenderView* view = box().view();