Merge branch 'safe-render-activities' into 'develop'

remove unnecessary filter (re !723)

See merge request pleroma/pleroma!729

lib/pleroma/web/mastodon_api/views/status_view.ex

@@ -54,7 +54,6 @@ def render("index.json", opts) do
       "status.json",
       Map.put(opts, :replied_to_activities, replied_to_activities)
     )
-    |> Enum.filter(fn x -> not is_nil(x) end)
   end
 
   def render(