DeleteValidator: Mastodon sends unaddressed deletes.

lib/pleroma/web/activity_pub/object_validators/delete_validator.ex

@@ -32,7 +32,6 @@ def validate_data(cng) do
     |> validate_inclusion(:type, ["Delete"])
     |> validate_same_domain()
     |> validate_object_presence()
-    |> validate_recipients_presence()
   end
 
   def validate_same_domain(cng) do

test/web/activity_pub/object_validator_test.exs

@@ -59,20 +59,6 @@ test "it's invalid if the actor of the object and the actor of delete are from d
 
       assert {:actor, {"is not allowed to delete object", []}} in cng.errors
     end
-
-    test "it's invalid if all the recipient fields are empty", %{
-      valid_post_delete: valid_post_delete
-    } do
-      empty_recipients =
-        valid_post_delete
-        |> Map.put("to", [])
-        |> Map.put("cc", [])
-
-      {:error, cng} = ObjectValidator.validate(empty_recipients, [])
-
-      assert {:to, {"no recipients in any field", []}} in cng.errors
-      assert {:cc, {"no recipients in any field", []}} in cng.errors
-    end
   end
 
   describe "likes" do