lib/rdoc/markup/simple_markup/ is empty
While testing YARD with Ruby 1.9.1-p0, I noticed that rdoc/markup/simple_markup was not being loaded. I then discovered that Ruby 1.9.1-p0 was shipping with an empty lib/rdoc/markup/simple_markup/ directory. This empty directory should probably be removed for future releases.
Remove useless extra directory. Bug #1343
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24252 b2dd03c8-39d4-4d8f-98ff-823fe69b080e