Remove Travis builds for Ember channels.
Remove Travis builds for Ember channels.

We don't support them ATM and they timeout (causing Travis queue to
get backed up).  Will add back once this is updated for 1.13.

blakepettersson/dashboard.aptible.com,mixonic/ember-cli-aptible-shared,aptible/dashboard.aptible.com,chasballew/dashboard.aptible.com,chasballew/dashboard.aptible.com,blakepettersson/ember-cli-aptible-shared,chasballew/dashboard.aptible.com,mixonic/ember-cli-aptible-shared,blakepettersson/dashboard.aptible.com,aptible/ember-cli-aptible-shared,gib/ember-cli-aptible-shared,aptible/ember-cli-aptible-shared,aptible/dashboard.aptible.com,blakepettersson/ember-cli-aptible-shared,gib/ember-cli-aptible-shared,aptible/dashboard.aptible.com,blakepettersson/dashboard.aptible.com