Fixed the deconstructor of atPriorityQueue.
Fixed the deconstructor of atPriorityQueue.

Summary: Changed the deconstructor of atPriorityQueue.

Test Plan: I tested before and after the changes on socrates. It had little to no effect. This is because the priority queues do not get very large the way they are used (targetPriority).

Reviewers: szielinski, martin

Reviewed By: martin

Subscribers: ssirigam, rlouden, mfontaine, kboswell

Differential Revision: http://cr.irl.ucf.edu/D204

ucfistirl/atlas,ucfistirl/atlas