Rakefile in sidetiq-0.3.1 vs Rakefile in sidetiq-0.3.2

@@ -1,9 +1,6 @@
 require 'bundler/gem_tasks'
 require 'rake/testtask'
-require 'rake/extensiontask'
-
-Rake::ExtensionTask.new('sidetiq_ext')
 
 Rake::TestTask.new do |t|
   t.pattern = 'test/**/test_*.rb'
 end