IPV6: one set in static other dhcp. want to delete dhcp config

[3lliryc]

hi,
i a have problem with ipv6 address:

i have configure statics ipv4 and ipv6 address in netplan file. 01-netcfg.yaml
but i have two ipv6:
the first set by me in static and other one with dhcp i suppose.

Do you know in witch other file dhcp can be configured?

Best,