Remove code examples for Python 3.8 in `body_fields`

docs_src/body_fields/tutorial001_an.py

@@ -1,22 +0,0 @@
-from typing import Union
-
-from fastapi import Body, FastAPI
-from pydantic import BaseModel, Field
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-class Item(BaseModel):
-    name: str
-    description: Union[str, None] = Field(
-        default=None, title="The description of the item", max_length=300
-    )
-    price: float = Field(gt=0, description="The price must be greater than zero")
-    tax: Union[float, None] = None
-
-
-@app.put("/items/{item_id}")
-async def update_item(item_id: int, item: Annotated[Item, Body(embed=True)]):
-    results = {"item_id": item_id, "item": item}
-    return results

tests/test_tutorial/test_body_fields/test_tutorial001.py

@@ -4,16 +4,15 @@ import pytest
 from dirty_equals import IsDict
 from fastapi.testclient import TestClient
 
-from ...utils import needs_py39, needs_py310
+from ...utils import needs_py310
 
 
 @pytest.fixture(
     name="client",
     params=[
-        "tutorial001",
+        "tutorial001_py39",
         pytest.param("tutorial001_py310", marks=needs_py310),
-        "tutorial001_an",
+        "tutorial001_an_py39",
-        pytest.param("tutorial001_an_py39", marks=needs_py39),
         pytest.param("tutorial001_an_py310", marks=needs_py310),
     ],
 )