delete unused code

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@41701 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/mixin/downloadable.py

@@ -130,9 +130,6 @@ class DownloadableMixin:
     warnings.warn('getStandardFileName() is deprecated. '
                   'use getStandardFilename() instead.')
     return self.getStandardFilename(format=format)
-    method = self._getTypeBasedMethod('getStandardFilename',
-                             fallback_script_id='Document_getStandardFilename')
-    return method(format=format)
 
   def manage_FTPget(self):
     """Return body for ftp. and WebDAV