The Monasca project was marked inactive during 2023.1. Although we have
seen multiple people showing interest to keep the project, we haven't
seen any real progress.
Because the project is likely retired soon, let's deprecate the feature
dependent on Monasca so that we can remove it in a future release.
Change-Id: Ifd64f5ba59bbac238ff62302ec36a3e36954d6d0
