Merge pull request #7328 from heyitsanthony/travis-spam

travis: disable email notifications

.travis.yml

@@ -7,6 +7,10 @@ go:
   - 1.7.4
   - tip
 
+notifications:
+  on_success: never
+  on_failure: never
+
 env:
   matrix:
    - TARGET=amd64