.travis.yml in qonfig-0.19.0 vs .travis.yml in qonfig-0.19.1

- old
+ new

@@ -1,12 +1,9 @@
 language: ruby
 matrix:
   fast_finish: true
   include:
-  - rvm: 2.3.8
-    gemfile: gemfiles/with_external_deps.gemfile
-    env: TEST_PLUGINS=true
   - rvm: 2.4.9
     gemfile: gemfiles/with_external_deps.gemfile
     env: TEST_PLUGINS=true
   - rvm: 2.5.7
     gemfile: gemfiles/with_external_deps.gemfile
@@ -18,11 +15,9 @@
     gemfile: gemfiles/with_external_deps.gemfile
     env: TEST_PLUGINS=true
   - rvm: jruby-head
     gemfile: gemfiles/with_external_deps.gemfile
     env: TEST_PLUGINS=true
-  - rvm: 2.3.8
-    gemfile: gemfiles/without_external_deps.gemfile
   - rvm: 2.4.9
     gemfile: gemfiles/without_external_deps.gemfile
   - rvm: 2.5.7
     gemfile: gemfiles/without_external_deps.gemfile
   - rvm: 2.6.5