Reverting autoscroll fix. I need to rework this a little.

    Reverting autoscroll fix.  I need to rework this a little.

        * page/Frame.cpp:
        (WebCore::Frame::handleAutoscroll):
        (WebCore::Frame::autoscrollTimerFired):
        (WebCore::Frame::stopAutoscrollTimer):
        * page/Frame.h:
        * rendering/RenderLayer.cpp:
        (WebCore::RenderLayer::~RenderLayer):
        * rendering/RenderListBox.cpp:
        (WebCore::RenderListBox::~RenderListBox):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@16836 268f45cc-cd09-0410-ab3c-d52691b4dbfc