1 files changed, 1 insertions, 6 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
index 773ecbe126..7ca597859d 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
@@ -16,8 +16,7 @@ module ActiveRecord
       end
 
       client = Mysql2::Client.new(config)
-      options = [config[:host], config[:username], config[:password], config[:database], config[:port], config[:socket], 0]
-      ConnectionAdapters::Mysql2Adapter.new(client, logger, options, config)
+      ConnectionAdapters::Mysql2Adapter.new(client, logger, nil, config)
     rescue Mysql2::Error => error
       if error.message.include?("Unknown database")
         raise ActiveRecord::NoDatabaseError
@@ -185,10 +184,6 @@ module ActiveRecord
       def full_version
         @full_version ||= @connection.server_info[:version]
       end
-
-      def set_field_encoding field_name
-        field_name
-      end
     end
   end
 end