Remove erroneous disposeAndClear.

Change-Id: Ibc091cefab7fb0b628db0896af077a03fcda4094
diff --git a/vcl/source/window/toolbox.cxx b/vcl/source/window/toolbox.cxx
index b434061..d2e330b 100644
--- a/vcl/source/window/toolbox.cxx
+++ b/vcl/source/window/toolbox.cxx
@@ -1615,6 +1615,9 @@ void ToolBox::dispose()

ImplToolItem* ToolBox::ImplGetItem( sal_uInt16 nItemId ) const
{
    if (!mpData)
        return NULL;

    std::vector< ImplToolItem >::iterator it = mpData->m_aItems.begin();
    while ( it != mpData->m_aItems.end() )
    {