fix sogo bugs after 2022-08 update

data/Dockerfiles/dovecot/docker-entrypoint.sh

@@ -307,29 +307,13 @@ namespace {
 }
 EOF
 
-# Get SOGo IPv6 from Dig
-SOGO_V6=$(dig +answer sogo AAAA +short)
 
-if [ $SOGO_V6 ]; then
-cat <<EOF > /etc/dovecot/sogo_trusted_ip.conf
-# Autogenerated by mailcow
-remote ${IPV4_NETWORK}.248 {
-  disable_plaintext_auth = no
-}
-
-remote ${SOGO_V6} {
-  disable_plaintext_auth = no
-}
-EOF
-
-else
 cat <<EOF > /etc/dovecot/sogo_trusted_ip.conf
 # Autogenerated by mailcow
 remote ${IPV4_NETWORK}.248 {
   disable_plaintext_auth = no
 }
 EOF
-fi
 
 # Create random master Password for SOGo SSO
 RAND_PASS=$(cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1)