Hi ONOS,
Remove the interfaces. While the vSZ comes online for the first time it will check the interfaces available in VM and assign to mgmt, ctrl, clstr. Disconnecting means still its available, still vSZ will assign as 3 interfaces.
Simply, after you deploy VM image, delete NIC2 and 3 and first-start. Note: VM wizard in VMware has default option to start VM, You may need to uncheck that.
HTH
Karthik
Thanks
Karthik.