Checkmk Werk 13036: REST API: host & folder config: fixed remove_attributes

ID: 13036 Title: REST API: host & folder config: fixed remove_attributes Component: Core & setup Level: 1 Class: Bug fix Version: 2.1.0i1 Removing a host or folder attribute via the REST API did not work before this werk. The return HTTP-Status code was 200, and the response reflected the change, but the change was not written to disk. Both the host_config endpoint and the bulk request were effected.