.travis.yml in turkish_id-0.6.0 vs .travis.yml in turkish_id-1.0.0

@@ -1,18 +1,11 @@
 language: ruby
 rvm:
-  - ruby-head
-  - 2.6.0
-  - 2.5.3
-  - 2.5.1
-  - 2.4.5
-  - 2.4.4
-  - 2.3.7
-  - 2.2.10
-  - 2.1.8
-  - 1.9.3
+  - 2.6.3
+  - 2.5.5
+  - 2.4.6
 before_install:
-  - 'if [[ `ruby -v` =~ 2.2.10 ]]; gem update --system; then gem update --system; else gem update --system 2.7.8; fi'
+  - 'gem update --system'
   - 'gem --version'
   - 'gem install bundler'
 env:
   global:
     - CC_TEST_REPORTER_ID=92655ba2c8b47200f80e996afb80c410b9491514845d414d7517108ad35a5178