Comment 11 for bug 1674557

Reviewed: https://review.openstack.org/447896
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=a7898c54954396f8fdfe86a6445f5e5648407d5e
Submitter: Jenkins
Branch: master

commit a7898c54954396f8fdfe86a6445f5e5648407d5e
Author: Akihiro Motoki <email address hidden>
Date: Tue Mar 21 06:48:13 2017 +0000

    Simplify RootHelperProcess._read_stream()

    select() itself has timeout mechanism, so we do not need to use
    wait_until_true wrapper.

    Related-Bug: #1674557
    Change-Id: I35bc4716f0d1e0d92e7b7a3f6dcb6978e9d725f9