remove duplicate download_manager init

Signed-off-by: varun-edachali-dbx <varun.edachali@databricks.com>

Author: varun-edachali-dbx

src/databricks/sql/backend/sea/queue.py

@@ -285,13 +285,6 @@ def __init__(
 
         self.current_chunk_index = 0
 
-        self.download_manager = ResultFileDownloadManager(
-            links=[],
-            max_download_threads=max_download_threads,
-            lz4_compressed=lz4_compressed,
-            ssl_options=ssl_options,
-        )
-
         self.link_fetcher = LinkFetcher(
             download_manager=self.download_manager,
             backend=self._sea_client,