refactor: simplify the code

program/serializers.py

@@ -1016,10 +1016,8 @@ class NoteSerializer(serializers.ModelSerializer):
         links_data = validated_data.pop("links", [])
 
         # required
-        if "timeslot" in validated_data:
-            validated_data["timeslot"] = validated_data.pop("timeslot")
-        else:
-            # TODO: Once we remove nested routes, this hack should be removed
+        # TODO: Once we remove nested routes, this hack should be removed
+        if "timeslot" not in validated_data:
             timeslot_pk = TimeSlot.objects.get(pk=self.context["request"].path.split("/")[-3])
             validated_data["timeslot"] = validated_data.pop("timeslot", timeslot_pk)