Merge pull request rsim#1726 from yahonda/backport_1725_to_release52

Do not install bundler explicitly

Author: yahonda

.travis.yml

@@ -24,8 +24,6 @@ before_install:
   - chmod +x .travis/setup_accounts.sh
 
 install:
-  - "travis_retry gem update --system"
-  - "travis_retry gem install bundler"
   - .travis/oracle/download.sh
   - .travis/oracle/install.sh
   - .travis/setup_accounts.sh