To uninstall nvidia-installer-cleanup just follow these instructions.
sudo apt-get remove nvidia-installer-cleanup
This will remove just the nvidia-installer-cleanup package itself.
sudo apt-get remove --auto-remove nvidia-installer-cleanup
This will remove the nvidia-installer-cleanup package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for nvidia-installer-cleanup then this will work.
sudo apt-get purge nvidia-installer-cleanup
Or similarly, like this nvidia-installer-cleanup
sudo apt-get purge --auto-remove nvidia-installer-cleanup
|Maintainer||Debian NVIDIA Maintainers <email@example.com>|
|Description||cleanup after driver installation with the nvidia-installer drivers that were installed with the nvidia-installer remain on the system. Such an installation conflicts with the packaged drivers.|