Update Lib/multiprocessing/resource_tracker.py

Author: graingert

Lib/multiprocessing/resource_tracker.py

@@ -161,7 +161,6 @@ def _launch(self):
             fds_to_pass.append(sys.stderr.fileno())
         except Exception:
             pass
-        cmd = 'from multiprocessing.resource_tracker import main;main(%d)'
         r, w = os.pipe()
         try:
             fds_to_pass.append(r)