Remove secondary / alias IP from installation process?

[RobinUK]

Hi,

I've recently setup my firewall in a LAB environment and during the installation I change the IP, however the process did say it was keeping the 192.168.1.1 address as a secondary in case of issues.

Question: how do I get rid of the the IP 192.168.1.1 from the original installation process as I'm using it elsewhere in the LAB?

The admin guide says to use 

"show interface <name of interface> aliases 

But "aliases" gives a bad parameter (also alias on the delete command).

[synack]

You can simply delete it as any other ipv4 address or ( in this case "logical" ) interface.
Use <tab> to see the offered values :
delete interface Mgmt alias Mgmt:1