.travis.yml in rack-app-7.2.2 vs .travis.yml in rack-app-7.3.0

@@ -4,21 +4,16 @@
 install:
   - gem update bundler
   - bundle install
 
 rvm:
-
-  - 1.8
   - 1.9
   - 2.0.0
   - 2.1.1
   - 2.1.2
   - 2.2.2
   - 2.3.1
-
-  - jruby-18mode
   - jruby-19mode
-  - ree
 
   - ruby-head
   - jruby-head
 
 matrix: