remove call of clearConversionCache

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@34881 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5OOo/Document/OOoDocument.py

@@ -586,8 +586,6 @@ class OOoDocument(PermanentURLMixIn, File, CachedConvertableMixin):
     if not self.hasBaseData():
       raise NotConvertedError
 
-    self.clearConversionCache()
-
     server_proxy = self._mkProxy()
     response_code, response_dict, response_message = \
           server_proxy.run_setmetadata(self.getId(),