Stabilize support for MSC3970: updated transaction semantics (scope to `device_id`) (#15629)

For now this maintains compatible with old Synapses by falling back
to using transaction semantics on a per-access token. A future version
of Synapse will drop support for this.

1 files changed, 1 insertions, 3 deletions

diff --git a/synapse/server.py b/synapse/server.py

index 8430f99ef2..e753ff0377 100644
--- a/synapse/server.py
+++ b/synapse/server.py
@@ -785,9 +785,7 @@ class HomeServer(metaclass=abc.ABCMeta):
 
     @cache_in_self
     def get_event_client_serializer(self) -> EventClientSerializer:
-        return EventClientSerializer(
-            msc3970_enabled=self.config.experimental.msc3970_enabled
-        )
+        return EventClientSerializer()
 
     @cache_in_self
     def get_password_policy_handler(self) -> PasswordPolicyHandler: