diff --git a/scripts/lib/zulip_tools.py b/scripts/lib/zulip_tools.py
index 2d6b74dd89..f2fac5fbba 100755
--- a/scripts/lib/zulip_tools.py
+++ b/scripts/lib/zulip_tools.py
@@ -37,19 +37,6 @@ BLUE = '\x1b[34m'
 MAGENTA = '\x1b[35m'
 CYAN = '\x1b[36m'
 
-# Parent parser for cache cleaning scripts.
-GENERIC_CACHE_SCRIPT_PARSER = argparse.ArgumentParser(add_help=False)
-GENERIC_CACHE_SCRIPT_PARSER.add_argument(
-    "--threshold", dest="threshold_days", type=int, default=14,
-    nargs="?", metavar="<days>", help="Any cache which is not in "
-    "use by a deployment not older than threshold days(current "
-    "installation in dev) and older than threshold days will be "
-    "deleted. (defaults to 14)")
-GENERIC_CACHE_SCRIPT_PARSER.add_argument(
-    "--dry-run", dest="dry_run", action="store_true",
-    help="If specified then script will only print the caches "
-    "that it will delete/keep back. It will not delete any cache.")
-
 def parse_cache_script_args(description):
     # type: (Text) -> argparse.Namespace
     parser = argparse.ArgumentParser(description=description)