This change removes the failing Read the Docs webhook in favor of
publishing to docs.airshipit.org/airshipctl. As post jobs cannot be
verified until merge, this may require more attempts in future commits.
Change-Id: I3b2b2a01fbfc144861d58289adbd1e6ee382f014
Signed-off-by: Drew Walters <andrew.walters@att.com>
31fe88a744