Gemfile in passenger_api-0.1.0 vs Gemfile in passenger_api-0.2.0

@@ -5,17 +5,6 @@
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 # Specify your gem's dependencies in passenger_api.gemspec
 gemspec
 
-if RUBY_VERSION > '2.0'
-  gem 'rubocop', '0.49.1'
-end
-
-if RUBY_VERSION < '2.3'
-  gem 'rack', '< 2'
-end
-
-if RUBY_VERSION < '1.9'
-  gem 'json'
-  gem 'rack-test', '< 0.7'
-end
+gem 'rubocop', '0.49.1'