This begins the install guide chapter for neutron,
and cleans up some sections from the guide that will
not be used even as references.
* hypervisor_selection - not relevant for the adventure
where the choice is done prior, and makes some difficult
value judgement statemtnts
* scripted ubuntu install - not the purpose of this guide
and old content that isn't helpful for the rewrite
* image-troubleshooting - empty section, belongs in
cloud-admin-guide anyway
* vnc-console - already in image_install
* identity_config_keystone - already better done in
individual sections
* install nova-volume - very dated content, already
in cinder install
* basic install files - no longer needed for reference
Change-Id: I1979eeba091c7118db7cc30ad7c66f30345fe49d
8f7d1bd81a