without integration test in Travis CI

他の人の Pull Request で Travis CI が失敗するため Integration Test を
Travis CI 時に実行しなようにする。

.travis.yml

@@ -1,10 +1,5 @@
 language: ruby
 cache: bundler
-env:
-  global:
-    - AWS_REGION="ap-northeast-1"
-    - secure: "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"
-    - secure: "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"
 rvm:
   - 2.5
   - 2.6

spec/spec_helper.rb

@@ -18,5 +18,5 @@
 require 'aws-ssm-env/parameter'
 
 RSpec.configure do |config|
-  config.filter_run_excluding(integration: true) unless ENV['CI']
+  config.filter_run_excluding(integration: true)
 end