remove erroneous new disposeAndClear.

Change-Id: Ib593f05447a8a657649ef83febb4ef0e5b6476dd
diff --git a/vcl/source/window/window.cxx b/vcl/source/window/window.cxx
index fffd6a8..2af9470 100644
--- a/vcl/source/window/window.cxx
+++ b/vcl/source/window/window.cxx
@@ -497,7 +497,6 @@ void Window::dispose()
    // release SalGraphics
    OutputDevice *pOutDev = GetOutDev();
    pOutDev->ReleaseGraphics();
    mpOutputDevice.disposeAndClear();

    // notify ImplDelData subscribers of this window about the window deletion
    ImplDelData* pDelData = mpWindowImpl->mpFirstDel;