Remove active_record_serializer logs in prod (#5520)

Gemfile.lock

@@ -538,9 +538,3 @@ DEPENDENCIES
   web-console (>= 4.2.1)
   webdrivers
   webmock
-
-RUBY VERSION
-   ruby 3.0.0p0
-
-BUNDLED WITH
-   2.2.3

config/environments/production.rb

@@ -135,17 +135,13 @@ Rails.application.configure do
   # require "syslog/logger"
   # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new "app-name")
 
-  if ENV['RAILS_LOG_TO_STDOUT'].present?
-    $stdout.sync = true
-    logger           = ActiveSupport::Logger.new($stdout)
-    logger.formatter = config.log_formatter
-    config.logger    = ActiveSupport::TaggedLogging.new(logger)
-  end
-
   if ENV['RAILS_LOG_REMOTE_NAME'] && ENV['RAILS_LOG_REMOTE_PORT']
     require 'remote_syslog_logger'
     logger_program = ENV['RAILS_LOG_REMOTE_TAG'] || "greenlight-v3-#{ENV.fetch('RAILS_ENV', nil)}"
     logger = RemoteSyslogLogger.new(ENV['RAILS_LOG_REMOTE_NAME'], ENV['RAILS_LOG_REMOTE_PORT'], program: logger_program)
+  else
+    $stdout.sync = true
+    logger = ActiveSupport::Logger.new($stdout)
   end
 
   logger.formatter = config.log_formatter

config/initializers/active_model_serializers.rb

+# BigBlueButton open source conferencing system - http://www.bigbluebutton.org/.
+#
+# Copyright (c) 2022 BigBlueButton Inc. and by respective authors (see below).
+#
+# This program is free software; you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free Software
+# Foundation; either version 3.0 of the License, or (at your option) any later
+# version.
+#
+# Greenlight is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with Greenlight; if not, see <http://www.gnu.org/licenses/>.
+
+# frozen_string_literal: true
+
+ActiveModelSerializers.logger = Logger.new(IO::NULL) if Rails.env.production?