Rollback CNFs 2.1.1 to 2.1.0

Rollback procedures from CNFs 2.1.1 to 2.1.0 or any lower versions of CNFs are not supported. To revert to CNFs 2.1.0, you must completely uninstall the CNFs 2.1.1 deployment and then proceed with a fresh installation of CNFs 2.1.0.