init-ubuntu: resolvconf is not needed anymore

unbound is still needed since it's running but not for resolv.conf

scripts/init-ubuntu.sh

@@ -37,7 +37,6 @@ debconf-set-selections <<< 'mysql-server mysql-server/root_password password pas
 debconf-set-selections <<< 'mysql-server mysql-server/root_password_again password password'
 
 # this enables automatic security upgrades (https://help.ubuntu.com/community/AutomaticSecurityUpdates)
-# resolvconf is needed for unbound to work property after disabling systemd-resolved in 18.04
 case "${ubuntu_version}" in
 16.04)
     gpg_package="gnupg"
@@ -98,7 +97,6 @@ apt-get -y install --no-install-recommends \
     openssh-server \
     python3-magic \
     pwgen \
-    resolvconf \
     sshfs \
     swaks \
     tzdata \
@@ -191,10 +189,6 @@ systemctl disable dnsmasq || true
 systemctl stop postfix || true
 systemctl disable postfix || true
 
-# on ubuntu 18.04 and 20.04, this is the default. this requires resolvconf for DNS to work further after the disable
-systemctl stop systemd-resolved || true
-systemctl disable systemd-resolved || true
-
 # on vultr, ufw is enabled by default. we have our own firewall
 ufw disable || true