Follow-up for #1199946: Disabled modules are broken beyond repair so the "disable" functionality needs to be removed
In order to keep the patch at #1199946: Disabled modules are broken beyond repair so the "disable" functionality needs to be removed as reviewable as possible we agreed to not fix every single place in the documentation that talks about disabled/enabled modules as that would've easily caused the patch to settle somewhere close to 500kb which is something we really want to avoid for such a fundamental change of the underlying system.
Hence, once it get's committed, we will have to fix/remove/clean-up a lot of places in core where the documentation still refers to disabled/enabled modules or potentially even change variable names that suggest the existence of such ($enabled_modules / $disabled_modules, etc.). That's what this issue is about.