[part9]Remove singleclient outdated api (#5752)

* Delete part of the interface

* auto format by CI

* delete comment

* delet comment

* auto format by CI

* delete enable_if.unique(***)

* delete get_current_machine_id

* auto format by CI

* Add init empty function

* Add blank line

* Fix the last line

* auto format by CI

Co-authored-by: oneflow-ci-bot <ci-bot@oneflow.org>
Co-authored-by: oneflow-ci-bot <69100618+oneflow-ci-bot@users.noreply.github.com>