Image Update 201707-01 (circleci#1320)

Author: kimh

jekyll/_cci1/build-image-trusty.md

@@ -293,10 +293,6 @@ Version: `{{ site.data.trusty.versions-ubuntu-14_04-XXL.summary.gcloud }}`
 
 Version: `{{ site.data.trusty.versions-ubuntu-14_04-XXL.summary.aws-cli }}`
 
-### heroku/heroku-toolbelt
-
-Version: `{{ site.data.trusty.versions-ubuntu-14_04-XXL.summary.heroku-toolbelt }}`
-
 ## Android
 
 ### SDK Tools