You can remove a reference to destination cluster using the REST API. A destination cluster is a cluster to which you replicate data. After you remove it, it will no longer be available for replication via XDCR:
shell> curl -v -X DELETE -u Administrator:password1 10.4.2.4:8091/pools/default/remoteClusters/remote1
This will send a request similar to the following example:
DELETE /pools/default/remoteClusters/remote1 HTTP/1.1 Authorization: Basic QWRtaW5pc3RyYXRvcjpwYXNzd29yZDE= User-Agent: curl/7.21.4 (universal-apple-darwin11.0) libcurl/7.21.4 OpenSSL/0.9.8r zlib/1.2.5 Host: 10.4.2.4:8091 Accept: */*
If successful, Couchbase Server will respond with a 200 response as well as the string, 'OK':
HTTP/1.1 200 OK Server: Couchbase Server 2.0.0-1941-rel-community Pragma: no-cache .... "ok"
For more information about XDCR and references to destination clusters via the Couchbase Web Console, see Section 5.8.5, “Configuring Replication”.