anchor.diff:  
   
   ## Devices [/devices{?limit,offset,detailed,protocol,entity}]
  +
   A device is a resource that publish information to IoT Platform and it uses the IoT Agent.
  +
   ### Device Model
  +
   - `device_id`. Unique identifier into a service.
   - `protocol`. Protocol assigned to device. This field is easily provided by IoTA Manager if it is used. Every module implmenting a protocol has an identifier.
   - `entity_name`. Entity name used for entity publication (overload default)
  
positive.code: 
  + Response 204
  
  ### Remove a subservice/service [DELETE]
  You remove a subservice into a service. If Fiware-ServicePath is '/*' or '/#' remove service and all subservices.
  
  + Parameters [apikey, resource, device]
  
  
negative.code: + Response 204
  
  ### Remove a device [DELETE]
  
  If specific device is not found, we work as deleted.
  + Request (application/json)
  
  