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-rw-r--r--synapse/replication/tcp/commands.py10
-rw-r--r--synapse/replication/tcp/handler.py4
2 files changed, 0 insertions, 14 deletions
diff --git a/synapse/replication/tcp/commands.py b/synapse/replication/tcp/commands.py
index e4eec643f7..a07a01278a 100644
--- a/synapse/replication/tcp/commands.py
+++ b/synapse/replication/tcp/commands.py
@@ -289,14 +289,6 @@ class FederationAckCommand(Command):
         return str(self.token)
 
 
-class SyncCommand(Command):
-    """Used for testing. The client protocol implementation allows waiting
-    on a SYNC command with a specified data.
-    """
-
-    NAME = "SYNC"
-
-
 class RemovePusherCommand(Command):
     """Sent by the client to request the master remove the given pusher.
 
@@ -419,7 +411,6 @@ _COMMANDS = (
     ReplicateCommand,
     UserSyncCommand,
     FederationAckCommand,
-    SyncCommand,
     RemovePusherCommand,
     InvalidateCacheCommand,
     UserIpCommand,
@@ -437,7 +428,6 @@ VALID_SERVER_COMMANDS = (
     PositionCommand.NAME,
     ErrorCommand.NAME,
     PingCommand.NAME,
-    SyncCommand.NAME,
     RemoteServerUpCommand.NAME,
 )
 
diff --git a/synapse/replication/tcp/handler.py b/synapse/replication/tcp/handler.py
index dd71d1bc34..2f5a299141 100644
--- a/synapse/replication/tcp/handler.py
+++ b/synapse/replication/tcp/handler.py
@@ -31,7 +31,6 @@ from synapse.replication.tcp.commands import (
     RemoteServerUpCommand,
     RemovePusherCommand,
     ReplicateCommand,
-    SyncCommand,
     UserIpCommand,
     UserSyncCommand,
 )
@@ -281,9 +280,6 @@ class ReplicationCommandHandler:
 
             self._streams_connected.add(cmd.stream_name)
 
-    async def on_SYNC(self, cmd: SyncCommand):
-        pass
-
     async def on_REMOTE_SERVER_UP(self, cmd: RemoteServerUpCommand):
         """"Called when get a new REMOTE_SERVER_UP command."""
         self._replication_data_handler.on_remote_server_up(cmd.data)