Disable unused import check on the import of init_cinderx

Summary:
Suppress linter warnings on the unused import of init_cinderx, which is
imported for side-effects only.

Reviewed By: jermenkoo

Differential Revision: D114429859

fbshipit-source-id: 731601974a7281e9b3507938c0a85160b41f84fc

Author: Yhg1s

Lib/site.py

@@ -718,7 +718,7 @@ def main():
     # is missing then we weren't build with CinderX so ignoring the import
     # error is fine.
     try:
-        import init_cinderx
+        import init_cinderx  # noqa: F401
     except ImportError:
         pass
     execsitecustomize()