diff --git a/synapse/handlers/e2e_keys.py b/synapse/handlers/e2e_keys.py
index 2ad9b6d930..92b18378fc 100644
--- a/synapse/handlers/e2e_keys.py
+++ b/synapse/handlers/e2e_keys.py
@@ -38,7 +38,6 @@ from synapse.types import (
)
from synapse.util import json_decoder, unwrapFirstError
from synapse.util.async_helpers import Linearizer
-from synapse.util.caches.expiringcache import ExpiringCache
from synapse.util.retryutils import NotRetryingDestination
if TYPE_CHECKING:
@@ -1008,7 +1007,7 @@ class E2eKeysHandler:
return signature_list, failures
async def _get_e2e_cross_signing_verify_key(
- self, user_id: str, key_type: str, from_user_id: str = None
+ self, user_id: str, key_type: str, from_user_id: Optional[str] = None
) -> Tuple[JsonDict, str, VerifyKey]:
"""Fetch locally or remotely query for a cross-signing public key.
@@ -1292,17 +1291,6 @@ class SigningKeyEduUpdater:
# user_id -> list of updates waiting to be handled.
self._pending_updates = {} # type: Dict[str, List[Tuple[JsonDict, JsonDict]]]
- # Recently seen stream ids. We don't bother keeping these in the DB,
- # but they're useful to have them about to reduce the number of spurious
- # resyncs.
- self._seen_updates = ExpiringCache(
- cache_name="signing_key_update_edu",
- clock=self.clock,
- max_len=10000,
- expiry_ms=30 * 60 * 1000,
- iterable=True,
- )
-
async def incoming_signing_key_update(
self, origin: str, edu_content: JsonDict
) -> None:
|
