The linux docs seem to be wrong (or the software didn't install things in the proper place):

Uninstalling the ZENworks Adaptive Agent and Unregistering the Device from the Zone

Perform the following steps to remove a Linux managed device from the Management Zone and uninstall the ZENworks Adaptive Agent from it.

1. At the Linux Satellite console prompt, relaunch the uninstallation program by entering /opt/novell/zenworks/xplat/novell-zenworks-xplat-uninstall

There is no:

directory on my Linux Managed device (it was never a sat. server, JUST the ZAA installed on it).