PX Cleanup

# 1: Remove systemd service (if any)
sudo systemctl stop portworx
sudo systemctl disable portworx
sudo rm -f /etc/systemd/system/portworx*.service

# NOTE: if the steps below fail, please reboot the node, and repeat the steps 2..5

# 2: Unmount oci (if required)
grep -q '/opt/pwx/oci /opt/pwx/oci' /proc/self/mountinfo && sudo umount /opt/pwx/oci

# 3: Remove binary files
sudo rm -fr /opt/pwx

# 4: [OPTIONAL] Remove configuration files. Doing this means UNRECOVERABLE DATA LOSS.
sudo rm -fr /etc/pwx
sudo mv /etc/pwx /etc/pwx.wtf.$$

# wifefs -a /dev/wtf