diff --git a/test/rubygems/test_gem_remote_fetcher.rb b/test/rubygems/test_gem_remote_fetcher.rb
index f08579c0cc..b032f1613b 100644
--- a/test/rubygems/test_gem_remote_fetcher.rb
+++ b/test/rubygems/test_gem_remote_fetcher.rb
@@ -1000,12 +1000,6 @@ PeIQQkFng2VVot/WAQbv3ePqWq07g1BBcwIBAg==
     end
   end
 
-  def test_tcpsocketext_require
-    with_configured_fetcher(":ipv4_fallback_enabled: true") do |fetcher|
-      refute require('rubygems/core_ext/tcpsocket_init')
-    end
-  end
-
   def with_configured_fetcher(config_str = nil, &block)
     if config_str
       temp_conf = File.join @tempdir, '.gemrc'