.travis.yml in peatio-ndc-0.2.1 vs .travis.yml in peatio-ndc-0.2.2

@@ -1,8 +1,6 @@
 ---
-sudo: false
 language: ruby
 cache: bundler
 rvm:
-  - 2.5.3
   - 2.6.5
-before_install: gem install bundler -v 1.17.0
+before_install: gem install bundler -v 2.1.2