"nsxcli -c del nsx"
./var/run/log/esxupdate.log
indicates the removal is ongoing:esxupdate: 548656: vmware.runcommand: INFO: runcommand called with: args = '['/etc/init.d/nsx-mpa', 'stop', 'remove']', outfile = 'None', returnoutput = 'True', timeout = '0.0'.
VMware NSX-T Data Center 3.x
VMware NSX 4.x
This is expected. Removing NSX from an ESXi host will usually take approximately 15 minutes