remove some duplicated parts, and unusued macros; now the listbox title line is displayed in listbox_ods_macro, and rendered differently based on "display_header" variable, which is true in the case of form_list, or the first form_list rendered in form_report

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@35055 20353a03-c40f-0410-a6d1-a30d3c3de9de