use git dependencies like other rspec gems for 3.x

Author: JonRowe

Gemfile

@@ -6,10 +6,8 @@ gemspec
   library_path = File.expand_path("../../#{lib}", __FILE__)
   if File.exist?(library_path)
     gem lib, :path => library_path
-  elsif ENV["CI"] || ENV["USE_GIT_REPOS"]
-    gem lib, :git => "git://github.com/rspec/#{lib}.git"
   else
-    gem lib
+    gem lib, :git => "git://github.com/rspec/#{lib}.git"
   end
 end