Remove some redundant patches from the hotfixes branch

synapse/handlers/room_list.py

@@ -47,7 +47,6 @@ class RoomListHandler(BaseHandler):
     def __init__(self, hs: "HomeServer"):
         super().__init__(hs)
         self.enable_room_list_search = hs.config.enable_room_list_search
-
         self.response_cache: ResponseCache[
             Tuple[Optional[int], Optional[str], Optional[ThirdPartyInstanceID]]
         ] = ResponseCache(hs.get_clock(), "room_list")

synapse/handlers/sync.py

@@ -61,7 +61,6 @@ logger = logging.getLogger(__name__)
 # Debug logger for https://github.com/matrix-org/synapse/issues/4422
 issue4422_logger = logging.getLogger("synapse.handler.sync.4422_debug")
 
-SYNC_RESPONSE_CACHE_MS = 2 * 60 * 1000
 
 # Counts the number of times we returned a non-empty sync. `type` is one of
 # "initial_sync", "full_state_sync" or "incremental_sync", `lazy_loaded` is

synapse/storage/background_updates.py

@@ -84,9 +84,8 @@ class BackgroundUpdater:
 
     MINIMUM_BACKGROUND_BATCH_SIZE = 100
     DEFAULT_BACKGROUND_BATCH_SIZE = 100
-    # temporarily increased to make stream_ordering go faster: rv 2021/06/29
-    BACKGROUND_UPDATE_INTERVAL_MS = 10
-    BACKGROUND_UPDATE_DURATION_MS = 1000
+    BACKGROUND_UPDATE_INTERVAL_MS = 1000
+    BACKGROUND_UPDATE_DURATION_MS = 100
 
     def __init__(self, hs: "HomeServer", database: "DatabasePool"):
         self._clock = hs.get_clock()