Deletes do not generate notifications of any kind, so skip trying

CHANGELOG.md

@@ -55,6 +55,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fixed slow timelines when there are a lot of deactivated users
 - Fixed account deletion API
 - Fixed lowercase HTTP HEAD method in the Media Proxy Preview code
+- Removed useless notification call on Delete activities
 
 ### Removed
 - Quack, the logging backend that pushes to Slack channels

lib/pleroma/web/activity_pub/side_effects.ex

@@ -324,7 +324,6 @@ def handle(%{data: %{"type" => "Delete", "object" => deleted_object}} = object,
       end
 
     if result == :ok do
-      Notification.create_notifications(object)
       {:ok, object, meta}
     else
       {:error, result}