fix(travis-ci): remove defunct "scheduler" branch

mboersma · mboersma · commit e08de5496e53 · 2014-04-16T12:04:13.000-06:00
The "scheduler" branch was merged to master and travis-ci.org
doesn't need to test what isn't there.
diff --git a/.travis.yml b/.travis.yml
@@ -10,7 +10,6 @@ branches:
   only:
     - master
     - release
-    - scheduler
 
 services:
   - postgresql
