🔥 Remove Python 3.9 specific files, no longer needed after updating translations (#14931)

docs_src/response_change_status_code/tutorial001_py39.py

@@ -1,13 +0,0 @@
-from fastapi import FastAPI, Response, status
-
-app = FastAPI()
-
-tasks = {"foo": "Listen to the Bar Fighters"}
-
-
-@app.put("/get-or-create-task/{task_id}", status_code=200)
-def get_or_create_task(task_id: str, response: Response):
-    if task_id not in tasks:
-        tasks[task_id] = "This didn't exist before"
-        response.status_code = status.HTTP_201_CREATED
-    return tasks[task_id]