Deregister device from IoT Hub.

Delete a device. This also removes all resources in the device on cloud side. In case the session is already created - TLS connection is already authorized (see oic.sec.session); no additional properties are required. example: /oic/account?di=9cfbeb8e-5a1e-4d1c-9d01-00c04fd430c8&accesstoken=0f3d9f7fe5491d54077d