more work on install scripts

mullvad-vpn-daemon/mullvad-vpn-daemon.pre-upgrade

@@ -15,5 +15,5 @@ if which systemctl &> /dev/null && systemctl is-system-running | grep -vq offlin
     fi
 fi
 
-rm -f /var/cache/mullvad-vpn/relays.json
+# Since we are upgrading mullvad-daemon, it will probably have current IP baked into itself.
 rm -f /var/cache/mullvad-vpn/api-ip-address.txt