Removes leftover print_stack()

celery/bin/base.py

@@ -116,8 +116,6 @@ class Command(object):
             sys.stderr.write(
                 "\nUnrecognized command line arguments: %s\n" % (
                     ", ".join(args), ))
-            import traceback
-            traceback.print_stack(file=sys.stderr)
             sys.stderr.write("\nTry --help?\n")
             sys.exit(1)
         return self.run(*args, **vars(options))