.travis.yml in http-protocol-0.12.1 vs .travis.yml in http-protocol-0.12.2

@@ -1,21 +1,20 @@
 language: ruby
-sudo: required
 dist: xenial
 cache: bundler
 
 matrix:
   include:
     - rvm: 2.3
     - rvm: 2.4
     - rvm: 2.5
     - rvm: 2.6
+    - rvm: 2.6
+      env: COVERAGE=PartialSummary,Coveralls
     - rvm: truffleruby
     - rvm: jruby-head
       env: JRUBY_OPTS="--debug -X+O"
     - rvm: ruby-head
-    - rvm: rbx-3
   allow_failures:
     - rvm: truffleruby
     - rvm: ruby-head
     - rvm: jruby-head
-    - rvm: rbx-3