The LVM driver accepts a "lvm_share_export_ips"
option instead of "lvm_share_export_ip" since
the Pike release [1]. Let's drop support for this
option and cleanup compatibility code.
[1] Ib3594aa5d7751c829820fce830d87f6ceea6b049
Change-Id: Ifdeb470438c204cc6cc370517833cb2cab5b7822
In accord with the OpenStack documentation migration spec [1],
this patch pulls over material from the centralized Configuration
Reference so that it will not be lost. As indicated in the spec,
dynamic generation of this material will be left for later work.
[1] https://specs.openstack.org/openstack/docs-specs/specs/pike/os-manuals-migration.html
Closes-Bug: #1706181
Depends-On: Ib0fca0c16e14c05307bfc31ae50c65271b7402f1
Depends-On: Ia750cb049c0f53a234ea70ce1f2bbbb7a2aa9454
Change-Id: I7f3b584ac9907da1f07dedd26324cf4703bc7e6c
