message: Remove duplicate line in facebook controller
diff: @@ -68,10 +68,6 @@ function Facebookbot(configuration) {
  platform_message.sender_action = message.sender_action;
  }
  - if (message.sender_action) {
  - platform_message.sender_action = message.sender_action;
  - }
  -
  if (message.notification_type) {
  platform_message.notification_type = message.notification_type;
  }
  