Container logging already has built-in timestamps (rails#52993)

It just makes the logs more unreadable when you have them doubled up by
default.

Author: dhh

railties/lib/rails/generators/rails/app/templates/config/environments/production.rb.tt

@@ -53,13 +53,9 @@ Rails.application.configure do
   # Prevent health checks from clogging up the logs.
   config.silence_healthcheck_path = "/up"
 
-  # Log to STDOUT by default.
-  config.logger = ActiveSupport::Logger.new(STDOUT)
-    .tap  { |logger| logger.formatter = ::Logger::Formatter.new }
-    .then { |logger| ActiveSupport::TaggedLogging.new(logger) }
-
-  # Prepend all log lines with the following tags.
+  # Log to STDOUT with the current request id as a default log tag.
   config.log_tags = [ :request_id ]
+  config.logger   = ActiveSupport::TaggedLogging.new(ActiveSupport::Logger.new(STDOUT))
 
   # "info" includes generic and useful information about system operation, but avoids logging too much
   # information to avoid inadvertent exposure of personally identifiable information (PII). If you