Takashi Kajinami 2e1a45db30 Clean up the removed enable_* settings
OPENSTACK_NEUTRON_NETWORK no longer supports the following settings[1].
 - enable_firewall
 - enable_lb
 - enable_vpn

This change removes the remanining usage of these settings from
installation guide.

[1] 53a5164d82a7412d10cee634cd0755336f566e24

Change-Id: I9c75bafc2301f045096b51f433456d1accb12edf
2021-01-02 15:01:47 +09:00
..
2020-11-12 12:36:11 +02:00