Remove unused code.

sanic/asgi.py

@@ -363,89 +363,3 @@ class ASGIApp:
         Handle the incoming request.
         """
         await self.sanic_app.handle_request(self.request)
-
-    async def stream_callback(self, response: HTTPResponse) -> None:
-        """
-        Write the response.
-        """
-        headers: List[Tuple[bytes, bytes]] = []
-        cookies: Dict[str, str] = {}
-        try:
-            cookies = {
-                v.key: v
-                for _, v in list(
-                    filter(
-                        lambda item: item[0].lower() == "set-cookie",
-                        response.headers.items(),
-                    )
-                )
-            }
-            headers += [
-                (str(name).encode("latin-1"), str(value).encode("latin-1"))
-                for name, value in response.headers.items()
-                if name.lower() not in ["set-cookie"]
-            ]
-        except AttributeError:
-            logger.error(
-                "Invalid response object for url %s, "
-                "Expected Type: HTTPResponse, Actual Type: %s",
-                self.request.url,
-                type(response),
-            )
-            exception = ServerError("Invalid response type")
-            response = self.sanic_app.error_handler.response(
-                self.request, exception
-            )
-            headers = [
-                (str(name).encode("latin-1"), str(value).encode("latin-1"))
-                for name, value in response.headers.items()
-                if name not in (b"Set-Cookie",)
-            ]
-
-        if "content-length" not in response.headers and not isinstance(
-            response, StreamingHTTPResponse
-        ):
-            headers += [
-                (b"content-length", str(len(response.body)).encode("latin-1"))
-            ]
-
-        if "content-type" not in response.headers:
-            headers += [
-                (b"content-type", str(response.content_type).encode("latin-1"))
-            ]
-
-        if response.cookies:
-            cookies.update(
-                {
-                    v.key: v
-                    for _, v in response.cookies.items()
-                    if v.key not in cookies.keys()
-                }
-            )
-
-        headers += [
-            (b"set-cookie", cookie.encode("utf-8"))
-            for k, cookie in cookies.items()
-        ]
-
-        await self.transport.send(
-            {
-                "type": "http.response.start",
-                "status": response.status,
-                "headers": headers,
-            }
-        )
-
-        if isinstance(response, StreamingHTTPResponse):
-            response.protocol = self.transport.get_protocol()
-            await response.stream()
-            await response.protocol.complete()
-
-        else:
-            await self.transport.send(
-                {
-                    "type": "http.response.body",
-                    "body": response.body,
-                    "more_body": False,
-                }
-            )