Merge pull request #2454 from mroderick/remove-puma-cluster-mode-config

Remove unused Puma cluster mode configuration

Author: mroderick

config/puma.rb

@@ -38,14 +38,4 @@
 # Silence Puma output in test environment
 if ENV.fetch("RAILS_ENV", "development") == "test"
   quiet
-end
-
-preload_app!
-# "worker" is the Puma term, not a background job.
-on_worker_boot do
-  ActiveSupport.on_load(:active_record) do
-    ActiveRecord::Base.establish_connection
-  end
-
-  SemanticLogger.reopen
-end
+end