.travis.yml in benchmark-http-0.5.0 vs .travis.yml in benchmark-http-0.6.0

@@ -1,21 +1,15 @@
 language: ruby
-sudo: required
 dist: xenial
 cache: bundler
 
-before_script:
-  - gem update --system
-
 matrix:
   include:
     - rvm: 2.4
     - rvm: 2.5
     - rvm: 2.6
     - rvm: jruby-head
       env: JRUBY_OPTS="--debug -X+O"
     - rvm: ruby-head
-    - rvm: rbx-3
   allow_failures:
     - rvm: ruby-head
     - rvm: jruby-head
-    - rvm: rbx-3