Gemfile in actionmailer_inline_css-1.5.3 vs Gemfile in actionmailer_inline_css-1.6.0

@@ -4,12 +4,6 @@
 
 gemspec
 
 group :development, :test do
   gem "webmock"
-
-  unless ENV['TRAVIS']
-    gem 'ruby-debug', :platform => :mri_18
-    gem 'ruby-debug19', :platform => :mri_19, :require => 'ruby-debug'
-  end
 end
-