.travis.yml in tty-prompt-0.10.1 vs .travis.yml in tty-prompt-0.11.0

@@ -15,10 +15,9 @@
   - jruby-9000
   - jruby-head
   - rbx-3
 matrix:
   allow_failures:
-    - rvm: 2.4.0
     - rvm: ruby-head
     - rvm: jruby-head
     - rvm: rbx-3
   fast_finish: true
 branches: