Disable libvirt driver file injection by default

[OpenStack Infra]

https://review.openstack.org/70239

Dear documentation bug triager. This bug was created here because we did not know how to map the project name "openstack/nova" to a launchpad project name. This indicates that the notify_impact config needs tweaks. You can ask the OpenStack infra team (#openstack-infra on freenode) for help if you need to.

commit 9ce99a44cf85e431227536e2251ef05b52e61524
Author: Robert Collins <email address hidden>
Date: Fri Jan 31 11:54:34 2014 +1300

    Disable libvirt driver file injection by default

    DocImpact: This changes the default for file injection and key
    injection with the libvirt driver. Most people should not need file
    injection (the metadata server and/or config drive are more robust,
    better options).

    UpgradeImpact

    blueprint disable-file-injection-by-default

    Change-Id: Icff1304fc816acc843f8962727aef8bbbc7bbaa3
    Co-Authored-By: Russell Bryant <email address hidden>
    Co-Authored-By: Steve Kowalik <email address hidden>

[Andreas Jaeger (jaegerandi)]

This will be updated with the next run of autogenerate_config_docs.