Simplify FairQueue since we don't have to deal with weird scenarios with front elements changing out from under us.
Simplify FairQueue since we don't have to deal with weird scenarios with front elements changing out from under us.

sirikata/sirikata,sirikata/sirikata,sirikata/sirikata,sirikata/sirikata,sirikata/sirikata,sirikata/sirikata,sirikata/sirikata,sirikata/sirikata