no need to getPreference with new implementation of pref tool.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@5592 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_accounting/SkinTemplateItem/portal_skins/erp5_accounting/AccountingTransactionModule_viewAccountingTransactionList/listbox.xml

@@ -447,7 +447,7 @@
                       <list>
                         <tuple>
                           <string>section_category</string>
-                          <string>here.portal_preferences.getPreference(\'preferred_accounting_transaction_section_category\')</string>
+                          <string>here.portal_preferences.getPreferredAccountingTransactionSectionCategory()</string>
                         </tuple>
                       </list>
                     </value>