1 files changed, 0 insertions, 6 deletions
diff --git a/actionpack/test/controller/send_file_test.rb b/actionpack/test/controller/send_file_test.rb
index 2c833aa2e5..73ed33ce2d 100644
--- a/actionpack/test/controller/send_file_test.rb
+++ b/actionpack/test/controller/send_file_test.rb
@@ -33,17 +33,11 @@ class SendFileTest < ActionController::TestCase
   include TestFileUtils
 
   def setup
-    @mime_type_defined = defined? Mime::PNG
-    Mime::Type.register "image/png", :png unless @mime_type_defined
     @controller = SendFileController.new
     @request = ActionController::TestRequest.new
     @response = ActionController::TestResponse.new
   end
 
-  teardown do
-    Mime::Type.unregister :png unless @mime_type_defined
-  end
-
   def test_file_nostream
     @controller.options = { :stream => false }
     response = nil