ruby1.8 compatibility isn't required to run gollum using ruby 1.8.7

The sanitize gem requires 1.8.7 or later, so compatibility with earlier versions is moot

lib/gollum.rb

@@ -7,9 +7,6 @@ require 'grit'
 require 'github/markup'
 require 'sanitize'
 
-# ruby 1.8 compatibility
-require 'gollum/ruby1.8'
-
 # internal
 require 'gollum/git_access'
 require 'gollum/committer'

lib/gollum/ruby1.8.rb

@@ -1,3 +0,0 @@
-class String
-  alias :lines :to_a if defined?(RUBY_VERSION) && RUBY_VERSION < '1.9'
-end