Ticket #1363: Update postcond of treat_browse_result_one_source_1

The specification of treat_browse_result_one_source_1 is corrected in the
commit "Correct Op treat_browse_result_one_source_1". The
postcond of this operation can be further simplified : in case where
out_BrowseResult_NodeId(browseResult_index) belongs to the domain of
conv_ExpandedNodeId_NodeId, in other words the node is in the local
server, the operation return code cannot be
e_sc_uncertain_reference_out_of_server.