1 files changed, 0 insertions, 15 deletions
diff --git a/activerecord/lib/active_record/test_case.rb b/activerecord/lib/active_record/test_case.rb
index 31b5a8651b..014a900c71 100644
--- a/activerecord/lib/active_record/test_case.rb
+++ b/activerecord/lib/active_record/test_case.rb
@@ -36,21 +36,6 @@ module ActiveRecord
       assert_queries(0, &block)
     end
 
-    def self.use_concurrent_connections
-      setup :connection_allow_concurrency_setup
-      teardown :connection_allow_concurrency_teardown
-    end
-
-    def connection_allow_concurrency_setup
-      @connection = ActiveRecord::Base.remove_connection
-      ActiveRecord::Base.establish_connection(@connection.merge({:allow_concurrency => true}))
-    end
-
-    def connection_allow_concurrency_teardown
-      ActiveRecord::Base.clear_all_connections!
-      ActiveRecord::Base.establish_connection(@connection)
-    end
-
     def with_kcode(kcode)
       if RUBY_VERSION < '1.9'
         orig_kcode, $KCODE = $KCODE, kcode