Using load_session_from_conf_options has the advantage that it honors
session settings like cafile and insecure, to make use of non-system TLS
certificates (or disable certificate checks at all). Also client
certificates and timeout values can be specified, too.
Closes-Bug: #1666936
Change-Id: I510a2683958fc8c3aaca9293b4280f325b9551fc
(cherry picked from commit a377fc5988)