Is this package still actively being used?

I am one of the maintainers of the Unity-for-Arch project. Libindicate is currently throwing a build error due to the current gtk-sharp-2 package in Arch. Removing the mono bindings resolves the build error, as well as downgrading gtk-sharp-2 to a previous package version. I have tried other resolutions, but I have not been able to solve the build issue. I noticed during a Google search that libindicate's job has been turned over to the indicator-messages package. With this in mind, I have tried going without both this package and libindicate-qt on my working Unity-for-Arch build, and so far I'm not seeing any issues. Are these packages needed for Unity to work properly?