Reset/Remove WiFi Profile

How can I remove the wifi profile? I want to remove the wifi connection and then test the BerryLan setup again. I tried to remove the connection from "
/etc/NetworkManager/system-connections"

and also from /etc/wpa_supplicant/wpa_supplicant.conf.

it does not really remove the wifi profile.

Am i missing something?

Thanks

You want to use nmcli to remove it. Something like this should work