Revert MSC3861 introspection cache, admin impersonation and account lock (#16258)

2 files changed, 0 insertions, 22 deletions

diff --git a/synapse/storage/databases/main/cache.py b/synapse/storage/databases/main/cache.py
index 18905e07b6..2fbd389c71 100644
--- a/synapse/storage/databases/main/cache.py
+++ b/synapse/storage/databases/main/cache.py
@@ -584,19 +584,6 @@ class CacheInvalidationWorkerStore(SQLBaseStore):
         else:
             return 0
 
-    async def stream_introspection_token_invalidation(
-        self, key: Tuple[Optional[str]]
-    ) -> None:
-        """
-        Stream an invalidation request for the introspection token cache to workers
-
-        Args:
-            key: token_id of the introspection token to remove from the cache
-        """
-        await self.send_invalidation_to_replication(
-            "introspection_token_invalidation", key
-        )
-
     @wrap_as_background_process("clean_up_old_cache_invalidations")
     async def _clean_up_cache_invalidation_wrapper(self) -> None:
         """
diff --git a/synapse/storage/databases/main/devices.py b/synapse/storage/databases/main/devices.py
index fa69a4a298..e4162f846b 100644
--- a/synapse/storage/databases/main/devices.py
+++ b/synapse/storage/databases/main/devices.py
@@ -33,7 +33,6 @@ from typing_extensions import Literal
 
 from synapse.api.constants import EduTypes
 from synapse.api.errors import Codes, StoreError
-from synapse.config.homeserver import HomeServerConfig
 from synapse.logging.opentracing import (
     get_active_span_text_map,
     set_tag,
@@ -1664,7 +1663,6 @@ class DeviceStore(DeviceWorkerStore, DeviceBackgroundUpdateStore):
         self.device_id_exists_cache: LruCache[
             Tuple[str, str], Literal[True]
         ] = LruCache(cache_name="device_id_exists", max_size=10000)
-        self.config: HomeServerConfig = hs.config
 
     async def store_device(
         self,
@@ -1786,13 +1784,6 @@ class DeviceStore(DeviceWorkerStore, DeviceBackgroundUpdateStore):
         for device_id in device_ids:
             self.device_id_exists_cache.invalidate((user_id, device_id))
 
-        # TODO: don't nuke the entire cache once there is a way to associate
-        #  device_id -> introspection_token
-        if self.config.experimental.msc3861.enabled:
-            # mypy ignore - the token cache is defined on MSC3861DelegatedAuth
-            self.auth._token_cache.invalidate_all()  # type: ignore[attr-defined]
-            await self.stream_introspection_token_invalidation((None,))
-
     async def update_device(
         self, user_id: str, device_id: str, new_display_name: Optional[str] = None
     ) -> None: