.travis.yml in coveralls_reborn-0.14.0 vs .travis.yml in coveralls_reborn-0.15.0

@@ -1,24 +1,20 @@
 language: ruby
 
 cache: bundler
 
-before_install:
-  - gem update --system
-  - gem install bundler
-
 env:
   global:
     # --dev improves JRuby startup time
     # --debug reports proper coverage to SimpleCov
     # See https://github.com/jruby/jruby/wiki/Improving-startup-time
     - JRUBY_OPTS="--dev --debug"
 
 rvm:
-  - 2.3.8
   - 2.4.9
   - 2.5.7
   - 2.6.5
+  - 2.7.0
   - ruby-head
   - jruby-9.2.9.0
 
 matrix:
   allow_failures: