remove dependency

testing.gemspec

@@ -17,7 +17,6 @@ Gem::Specification.new do |s|
   s.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.rdoc"]
   s.test_files = Dir["test/**/*"]
 
-  s.add_dependency "rails", "~> 4.1.16"
 
   s.add_development_dependency "sqlite3"
 end