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-rw-r--r--synapse/storage/__init__.py15
1 files changed, 0 insertions, 15 deletions
diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py
index 594566eb38..fdee9f1ad5 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -136,9 +136,6 @@ class DataStore(RoomMemberStore, RoomStore,
             db_conn, "pushers", "id",
             extra_tables=[("deleted_pushers", "stream_id")],
         )
-        self._group_updates_id_gen = StreamIdGenerator(
-            db_conn, "local_group_updates", "stream_id",
-        )
 
         if isinstance(self.database_engine, PostgresEngine):
             self._cache_id_gen = StreamIdGenerator(
@@ -239,18 +236,6 @@ class DataStore(RoomMemberStore, RoomStore,
             prefilled_cache=curr_state_delta_prefill,
         )
 
-        _group_updates_prefill, min_group_updates_id = self._get_cache_dict(
-            db_conn, "local_group_updates",
-            entity_column="user_id",
-            stream_column="stream_id",
-            max_value=self._group_updates_id_gen.get_current_token(),
-            limit=1000,
-        )
-        self._group_updates_stream_cache = StreamChangeCache(
-            "_group_updates_stream_cache", min_group_updates_id,
-            prefilled_cache=_group_updates_prefill,
-        )
-
         cur = LoggingTransaction(
             db_conn.cursor(),
             name="_find_stream_orderings_for_times_txn",