Comment 10 for bug 1934937

Reviewed: https://review.opendev.org/c/openstack/oslo.messaging/+/800621
Committed: https://opendev.org/openstack/oslo.messaging/commit/d24edef117a356a473247db35a020a1f2c68f9ae
Submitter: "Zuul (22348)"
Branch: master

commit d24edef117a356a473247db35a020a1f2c68f9ae
Author: Hervé Beraud <email address hidden>
Date: Tue Jul 13 12:50:48 2021 +0200

    Remove deprecation of heartbeat_in_pthread

    In some circumstances services can be executed outside of mod_wsgi and
    in a monkey patched environment. In this context we need to leave the
    possibility to users to execute the heartbeat in a green thread.

    The heartbeat_in_pthread was tagged as depreacted few months and planned
    for a future removal. These changes drop this deprecation to allow to
    enable green threads if needed.

    Closes-Bug: #1934937
    Change-Id: Iee2e5a6f7d71acba70bbc857f0bd7d83e32a7b8c