remove un-necessary assignment

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

Author: varun-edachali-dbx

src/databricks/sql/backend/thrift_backend.py

@@ -1159,10 +1159,7 @@ def _handle_execute_response(self, resp, cursor):
             resp.directResults and resp.directResults.operationStatus,
         )
 
-        execute_response = self._results_message_to_execute_response(
-            resp, final_operation_state
-        )
-        return execute_response
+        return self._results_message_to_execute_response(resp, final_operation_state)
 
     def _handle_execute_response_async(self, resp, cursor):
         command_id = CommandId.from_thrift_handle(resp.operationHandle)