accessibility: simplify and inline VCLXAccessibleList::clearItems

Change-Id: Ie32311850a0dc013e71e0456d7e6bfd8611e6e95
Reviewed-on: https://gerrit.libreoffice.org/37567Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

accessibility/inc/standard/vclxaccessiblelist.hxx

@@ -176,11 +176,6 @@ private:
     */
     css::uno::Reference< css::accessibility::XAccessible >  m_xParent;
 
-
-    /** dispose all items aand clears the container
-    */
-    void clearItems();
-
     void UpdateEntryRange_Impl();
 protected:
     void UpdateSelection_Impl(sal_Int32 nPos = 0);

accessibility/source/standard/vclxaccessiblelist.cxx

@@ -113,19 +113,12 @@ void SAL_CALL VCLXAccessibleList::disposing()
     VCLXAccessibleComponent::disposing();
 
     // Dispose all items in the list.
-    clearItems();
+    m_aAccessibleChildren.clear();
 
     m_pListBoxHelper.reset();
 }
 
 
-void VCLXAccessibleList::clearItems()
-{
-    // Clear the list itself and delete all the rest.
-    ListItems().swap(m_aAccessibleChildren); // clear and minimize
-}
-
-
 void VCLXAccessibleList::FillAccessibleStateSet (utl::AccessibleStateSetHelper& rStateSet)
 {
     SolarMutexGuard aSolarGuard;
@@ -512,7 +505,7 @@ Reference<XAccessible> VCLXAccessibleList::CreateChild (sal_Int32 nPos)
 
 void VCLXAccessibleList::HandleChangedItemList()
 {
-    clearItems();
+    m_aAccessibleChildren.clear();
     NotifyAccessibleEvent (
         AccessibleEventId::INVALIDATE_ALL_CHILDREN,
         Any(), Any());