Merge pull request #810 from rspec/remove-have-matcher

Remove the have extension

Author: JonRowe

lib/rspec/rails/matchers.rb

@@ -22,6 +22,5 @@ class AssertionFailedError < StandardError
 require 'rspec/rails/matchers/routing_matchers'
 require 'rspec/rails/matchers/be_new_record'
 require 'rspec/rails/matchers/be_a_new'
-require 'rspec/rails/matchers/have_extension'
 require 'rspec/rails/matchers/relation_match_array'
 require 'rspec/rails/matchers/be_valid'