* lib/rss/rexmlparser.rb: Remove needless REXML version check.
  Both RSS Parser and REXML are bundled in Ruby. RSS Parser can
  always use the latest REXML. [Bug #8754] [ruby-core:56454]
  Patch by Steve Klabnik. Thanks!!!


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42474 b2dd03c8-39d4-4d8f-98ff-823fe69b080e