all: drop bootstrap__firewall_nftables=true

No longer necessary, iptables support was dropped.

Signed-off-by: Jakub Sokołowski <jakub@status.im>

ansible/group_vars/all.yml

@@ -1,6 +1,4 @@
 ---
-bootstrap__firewall_nftables: true
-
 # Root password
 bootstrap__root_pass: '{{lookup("bitwarden", "root-pass")}}'
 # Consul