diff --git a/tests/appservice/test_api.py b/tests/appservice/test_api.py
index 15fce165b6..807dc2f21c 100644
--- a/tests/appservice/test_api.py
+++ b/tests/appservice/test_api.py
@@ -16,7 +16,6 @@ from unittest.mock import Mock
from twisted.test.proto_helpers import MemoryReactor
-from synapse.api.errors import HttpResponseException
from synapse.appservice import ApplicationService
from synapse.server import HomeServer
from synapse.types import JsonDict
@@ -107,58 +106,6 @@ class ApplicationServiceApiTestCase(unittest.HomeserverTestCase):
self.assertEqual(self.request_url, URL_LOCATION)
self.assertEqual(result, SUCCESS_RESULT_LOCATION)
- def test_fallback(self) -> None:
- """
- Tests that the fallback to legacy URLs works.
- """
- SUCCESS_RESULT_USER = [
- {
- "protocol": PROTOCOL,
- "userid": "@a:user",
- "fields": {
- "more": "fields",
- },
- }
- ]
-
- URL_USER = f"{URL}/_matrix/app/v1/thirdparty/user/{PROTOCOL}"
- FALLBACK_URL_USER = f"{URL}/_matrix/app/unstable/thirdparty/user/{PROTOCOL}"
-
- self.request_url = None
- self.v1_seen = False
-
- async def get_json(
- url: str,
- args: Mapping[Any, Any],
- headers: Mapping[Union[str, bytes], Sequence[Union[str, bytes]]],
- ) -> List[JsonDict]:
- # Ensure the access token is passed as both a header and query arg.
- if not headers.get("Authorization") or not args.get(b"access_token"):
- raise RuntimeError("Access token not provided")
-
- self.assertEqual(headers.get("Authorization"), [f"Bearer {TOKEN}"])
- self.assertEqual(args.get(b"access_token"), TOKEN)
- self.request_url = url
- if url == URL_USER:
- self.v1_seen = True
- raise HttpResponseException(404, "NOT_FOUND", b"NOT_FOUND")
- elif url == FALLBACK_URL_USER:
- return SUCCESS_RESULT_USER
- else:
- raise RuntimeError(
- "URL provided was invalid. This should never be seen."
- )
-
- # We assign to a method, which mypy doesn't like.
- self.api.get_json = Mock(side_effect=get_json) # type: ignore[assignment]
-
- result = self.get_success(
- self.api.query_3pe(self.service, "user", PROTOCOL, {b"some": [b"field"]})
- )
- self.assertTrue(self.v1_seen)
- self.assertEqual(self.request_url, FALLBACK_URL_USER)
- self.assertEqual(result, SUCCESS_RESULT_USER)
-
def test_claim_keys(self) -> None:
"""
Tests that the /keys/claim response is properly parsed for missing
|