removes devise-async for delayed devise emails

Custom overwrite of the devise implementation following
https://github.com/plataformatec/devise#activejob-integration

config/initializers/devise_async.rb

@@ -1,8 +1,8 @@
-Devise::Async.setup do |config|
-  if Rails.env.test? || Rails.env.development?
-    config.enabled = false
-  else
-    config.enabled = true
-  end
-  config.backend = :delayed_job
-end
+# Devise::Async.setup do |config|
+#   if Rails.env.test? || Rails.env.development?
+#     config.enabled = false
+#   else
+#     config.enabled = true
+#   end
+#   config.backend = :delayed_job
+# end