fix "tdf#119388 calc, slow removing column, improve ScChildrenShapes"

forgot to add the code to actually update the map, which would be bad
for accessibility

Change-Id: I5d93dd84649ce27a37c9035622f94fff3237b778
Reviewed-on: https://gerrit.libreoffice.org/75773
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
diff --git a/sc/source/ui/Accessibility/AccessibleDocument.cxx b/sc/source/ui/Accessibility/AccessibleDocument.cxx
index 1e9b8244..856ef70 100644
--- a/sc/source/ui/Accessibility/AccessibleDocument.cxx
+++ b/sc/source/ui/Accessibility/AccessibleDocument.cxx
@@ -1182,6 +1182,7 @@ void ScChildrenShapes::AddShape(const uno::Reference<drawing::XShape>& xShape, b
        ScAccessibleShapeData* pShape = new ScAccessibleShapeData();
        pShape->xShape = xShape;
        SortedShapes::iterator aNewItr = maZOrderedShapes.insert(aFindItr, pShape);
        maShapesMap[xShape] = pShape;
        SetAnchor(xShape, pShape);

        uno::Reference< beans::XPropertySet > xShapeProp(xShape, uno::UNO_QUERY);