celery.datastructures: Remove extraneous import statements.
celery.datastructures: Remove extraneous import statements.

mitsuhiko/celery,frac/celery,WoLpH/celery,ask/celery,frac/celery,cbrepo/celery,mitsuhiko/celery,cbrepo/celery,WoLpH/celery,ask/celery