add `RemoveSwarmNodeCmd` (#1735)

* add missing cmd `RemoveSwarmNodeCmd` in client

* Update docker-java/src/test/java/com/github/dockerjava/cmd/swarm/RemoveSwarmNodeCmdExecIT.java

Co-authored-by: Sergei Egorov <bsideup@gmail.com>

* Update docker-java/src/test/java/com/github/dockerjava/cmd/swarm/RemoveSwarmNodeCmdExecIT.java

Co-authored-by: Sergei Egorov <bsideup@gmail.com>

* force remove node

Co-authored-by: 訾明华 <zmh01@digibird.com.cn>
Co-authored-by: Sergei Egorov <bsideup@gmail.com>