get rid of hipchat send (#1791)
get rid of hipchat send (#1791)

wasn't needed, and hipchat is going away...
kzantow/blueocean-plugin,kzantow/blueocean-plugin,kzantow/blueocean-plugin,jenkinsci/blueocean-plugin,jenkinsci/blueocean-plugin,kzantow/blueocean-plugin,jenkinsci/blueocean-plugin,jenkinsci/blueocean-plugin,jenkinsci/blueocean-plugin