"Creative Cloud Files" appears in OS X sidebar on every restart

The "Creative Cloud Files" appears in the OS X Finder sidebar despite being removed. It reappears on every restart regardless of whether or not it's been removed previously. This has happened since the latest update.

Regardless of the fact that it shouldn't be automatically adding itself to begin with (it's insufferable that Adobe continues to insist on automatically starting menubar items and adding sidebar entries), it's absolutely unacceptable that you can't shut the behaviour off and the folder re-inserts itself on each reboot.

This should be fixed, and user decisions respected.