.travis.yml in slack-ruby-bot-server-0.12.3 vs .travis.yml in slack-ruby-bot-server-1.0.0

@@ -29,6 +29,5 @@
   - tar -xzf geckodriver-v0.18.0-linux64.tar.gz -C geckodriver
   - export PATH=$PATH:$PWD/geckodriver
 
 script:
   - bundle exec rake
-  - BUNDLE_GEMFILE=Gemfile && cd sample_apps/sample_app_$DATABASE_ADAPTER && bundle && bundle exec rake