chore: remove commitlint from check stage in CI (ipfs#1018)

See ipfs/aegir#345

Author: Alan Shaw

.travis.yml

@@ -25,7 +25,6 @@ jobs:
     - stage: check
       script:
         - npx aegir build --bundlesize
-        - npx aegir commitlint --travis
         - npx aegir dep-check
         - npm run lint