diff --git a/setup.py b/setup.py
index a3bc9f8..213eee4 100644
--- a/setup.py
+++ b/setup.py
@@ -374,9 +374,4 @@ def audit():
         return 'ERROR'
 
 
-def update_package():
-    """Populate local offline vendor assets before building/signing WAPT."""
-    source = _source_directory()
-    script = os.path.join(source, 'tools', 'vendor_assets.py')
-    subprocess.check_call([sys.executable, script, '--dest', os.path.join(source, 'vendor')])
-    print('Vendor ready. Review the diff and build/sign/upload via WAPT Console.')
+