According to https://docs.google.com/spreadsheet/ccc?key=0Aj_S9VF3rt5DdEhqZHlBaGVURmhZRDY3aDRBdlpHS3c#gid=0, we decided that NGSI10/contextEntities/entity01/attributes is equal to NGSI10/contextEntities/entity01. Thus DELETE on ...entityID/attributes is the same than delete on .../entityID

NTC (just informative).