revert TODO comments

Author: alexlipovka

app/fhir_server/operations.py

@@ -196,6 +196,7 @@ async def populate_questionnaire_handler(request: web.BaseRequest):
     env = await parameter_to_env(client, body)
     questionnaire_data = env["Questionnaire"]
     if not questionnaire_data:
+        # TODO: return OperationOutcome
         return web.json_response(
             {
                 "error": "bad_request",

app/sdc/utils.py

@@ -225,6 +225,7 @@ async def load_source_queries(client, questionnaire, env):
     for source_query in source_queries:
         ref = source_query.get("reference", "").removeprefix("#")
         if ref:
+            # TODO: raise a clear error
             raw_bundle = contained.get(ref)
             if raw_bundle:
                 bundle = prepare_bundle(raw_bundle, env)