simplify boolean return

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@22244 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/CMFCategory/Category.py

@@ -933,10 +933,7 @@ class BaseCategory(Category):
       if checked_permission is not None:
         checkPermission = self.portal_membership.checkPermission
         def permissionFilter(obj):
-          if checkPermission(checked_permission, obj):
-            return 1
-          else:
-            return 0
+          return checkPermission(checked_permission, obj)
         value_list = filter(permissionFilter, value_list)
 
       return sortValueList(value_list, sort_on, sort_order, **kw)