The Master Live Server has no information about the connected Replication Live Servers. A Replication Live Server can simply be stopped and deinstalled.

One way to disconnect the Replication Live Servers from Master Live Servers is by sending a POST HTTP request to http://host:port/actuator/replicator with an application/json body like {"enable": false}.

 curl --request POST \
        --url http://localhost:42081/actuator/replicator \
        --header 'Content-Type: application/json' \
        --data '{"enable": false}'
        

By setting the flag to false the service will be stopped but the application will be still up. All data changes are no more propagated from Master Live Servers until it is activated again. The service state can be by reverted by changing the value {"enable": true} inside the request body.