Gemfile in imgkit-1.6.2 vs Gemfile in imgkit-1.6.3

@@ -5,8 +5,7 @@
 group :test do
   gem "rake"
   gem "rspec", "~> 2"
   gem "rspec-core", "~> 2"
   gem "mocha"
-  gem 'wkhtmltoimage-binary'
   gem "rack", ">= 1.6.11"
 end