I want do forbid asset bundle assets from being built into the game. Is it possible?

I have a game with adult content accessible via DLC. I keep all the adult content in asset bundles. But sometimes while working some assets from asset bundles get to the build. I would like some kind of a warning system, a message, or ideally an error that would forbid the build - if an asset from an asset bundle is in fact used in a build. But I am not sure if this is possible