* airship-airshipctl-update-github-issues job adds comments
to related github issue on PS merge based on the tag(Realtes-To/Closes)
in commit message.
* airshipbot is already doing the job of adding comments to issues on new PSs
and updating the status (closed, reopen) as applicable.
* So the job airship-airshipctl-update-github-issues is redundant when airshipbot
is running.
Change-Id: I2c6fa748d3334384bf5b31c87d9501a006a153c1
Relates-To: #502