I have an installation where Jetpack development mode is enabled and I have manually deactivated all modules except Custom CSS. Nevertheless, I see the following actions are still being performed:
Ignoring devicepx, is there a way via filters to do absolutely nothing except what is required for Custom CSS?
I'm aware of this Gist to force deactivate all but 1 module, https://gist.github.com/jeherve/7872205. But that is what I have manually done, so I doubt it will get me closer to my goal.