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

docs_src/debugging/tutorial001_py39.py

@@ -1,15 +0,0 @@
-import uvicorn
-from fastapi import FastAPI
-
-app = FastAPI()
-
-
-@app.get("/")
-def root():
-    a = "a"
-    b = "b" + a
-    return {"hello world": b}
-
-
-if __name__ == "__main__":
-    uvicorn.run(app, host="0.0.0.0", port=8000)