Remove hard bundler dependency

Author: JonRowe

rspec-support.gemspec

@@ -35,7 +35,6 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 1.8.7'
 
-  spec.add_development_dependency "bundler",      "~> 1.3"
   spec.add_development_dependency "rake",         "~> 10.0.0"
   spec.add_development_dependency "thread_order", "~> 1.1.0"
 end