Fixed usage of task_arena from tbb in HLTControlFlowMgr
This had been broken in the past for Allen, in order to work around the lack of nextEvent
in the IQueueingEventProcessor
interface.
Expect this was a pure mistake, nextEvent
has always been there. Allen now uses it and thus we can go back to proper code in HLTControlFlowMgr
Goes together with Allen!1592 (merged)
Edited by Sebastien Ponce