No need to read filename from file object, contribution_tool is now able to do it

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@42830 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_ingestion/SkinTemplateItem/portal_skins/erp5_ingestion/Base_contribute.xml

@@ -100,9 +100,7 @@ if url is not None:\n
   filename=document.getId()\n
 else:\n
   # contribute file\n
-  filename = getattr(file, \'filename\', None)\n
-  document_kw.update({\'file\': file,\n
-                      \'filename\': filename,})\n
+  document_kw.update({\'file\': file})\n
   document = portal_contributions.newContent(**document_kw)\n
 \n
 is_existing_document_updated = False\n

bt5/erp5_ingestion/bt/revision

-131
+132
\ No newline at end of file