F401 in fb_py_test_main.py

Reviewed By: kavehahmadi60

Differential Revision: D109453369

fbshipit-source-id: c65ee18274f5f4af6f726a3447afb16261a55094

Author: generatedunixname949130641157030

build/fbcode_builder/CMake/fb_py_test_main.py

@@ -21,7 +21,6 @@
 import time
 import traceback
 import unittest
-import warnings
 from importlib.machinery import PathFinder