test removing extraneous delete

Author: jackyzha0

src/replit_river/client_transport.py

@@ -344,7 +344,6 @@ async def _establish_handshake(
                 # If the session status is mismatched, we should close the old session
                 # and let the retry logic to create a new session.
                 await old_session.close()
-                await self._delete_session(old_session)
 
             raise RiverException(
                 ERROR_HANDSHAKE,

src/replit_river/server_transport.py

@@ -270,7 +270,6 @@ async def _establish_handshake(
                 # we have an old session but the session id is different
                 # just delete the old session
                 await old_session.close()
-                await self._delete_session(old_session)
                 old_session = None
 
             if not old_session and (

tests/river_fixtures/clientserver.py

@@ -62,7 +62,6 @@ async def websocket_uri_factory() -> UriAndMetadata[None]:
                 logging.debug("Start closing test client : %s", "test_client")
                 await client.close()
     finally:
-        await asyncio.sleep(1)
         logging.debug("Start closing test server")
         await server.close()
         # Server should close normally