[REV] change travis yml

.travis.yml

@@ -5,14 +5,10 @@ go_import_path: github.com/goodrain/rainbond
 go:
   - "1.8.3"
 
-# https://docs.travis-ci.com/user/customizing-the-build/#Rows-that-are-Allowed-to-Fail
-env:
-
 # Run coverage tests.
 matrix:
   fast_finish: true
   allow_failures:
     - go: "1.8.3"
-
 script:
   - make build