Uninstallation of the plugin requires removal of all of the files that were added to Sqoop during installation. To do this cd into your Sqoop home directory and execute the following command:

shell> rm lib/couchbase-hadoop-plugin-1.0.jar lib/spymemcached-2.8.jar \
    lib/jettison-1.1.jar lib/netty-3.1.5GA.jar \
    conf/couchbase-config.xml conf/managers.d/couchbase-manager.xml