Comment 25 for bug 1804125

Reviewed: https://review.opendev.org/678254
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=e5b304af45423e61d5d591e5deb81d3848df1798
Submitter: Zuul
Branch: stable/stein

commit e5b304af45423e61d5d591e5deb81d3848df1798
Author: Matt Riedemann <email address hidden>
Date: Tue Aug 20 10:07:38 2019 -0400

    doc: remove confusing docs about aggregate allocation ratios

    Change Ifaf596a8572637f843f47daf5adce394b0365676 added a note
    about the behavior change in Ocata where allocation ratios
    set on host aggregates was ignored because of placement resource
    provider allocation ratios being used.

    Later, change I7d8e822cd40dccaf5244e2cd95fa1af43fa9ed87 added
    a lot more detail about allocation ratios in the scheduler docs
    including the initial* allocation ratio config options. The note
    from the previous change was moved and as a result leads to some
    confusion since the doc starts by saying essentially, "you can
    use these aggregate filters to manage allocation ratios on a set
    of hosts" and then the immediate note says essentially, "oh btw
    that doesn't work since ocata, sorry!".

    To avoid the confusion, this simply removes the part about how
    the aggregate filters can be used to manage allocation ratios.

    Conflicts:
          doc/source/admin/configuration/schedulers.rst

    NOTE(mriedem): The conflict is due to not having change
    I8a0d332877fbb9794700081e7954f2501b7e7c09 in Stein.

    Change-Id: I62710b0b8c098cca3f67020f4a6da5e684115414
    Related-Bug: #1804125
    (cherry picked from commit 77efc084fc50d38d2a1b42aca864a2a56eae6eba)