Made code that uses wxArrayPGProperty more STL compliant (still can't use wxVector for it because I think there is no wx equivalent of std::sort)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61695 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/propgrid/propgrid.cpp

@@ -784,7 +784,7 @@ bool wxPropertyGrid::DoRemoveFromSelection( wxPGProperty* prop, int selFlags )
     }
     else
     {
-        selection.Remove(prop);
+        m_pState->DoRemoveFromSelection(prop);
         RefreshProperty(prop);
         res = true;
     }