Remove duplicate logging initialization logic in utils.py (#1617)

icefall/utils.py

@@ -110,13 +110,6 @@ def str2bool(v):
         raise argparse.ArgumentTypeError("Boolean value expected.")
 
 
-def clear_log_handlers():
-    logger = logging.getLogger()
-    handlers = logger.handlers[:]
-    for handler in handlers:
-        logger.removeHandler(handler)
-
-
 def setup_logger(
     log_filename: Pathlike,
     log_level: str = "info",
@@ -133,8 +126,6 @@ def setup_logger(
       use_console:
         True to also print logs to console.
     """
-    clear_log_handlers()
-
     now = datetime.now()
     date_time = now.strftime("%Y-%m-%d-%H-%M-%S")
     if dist.is_available() and dist.is_initialized():