AlgorithmTimer+TrigSignatureMoni: remove deprecated DELIVERYBYTHREAD flag

Thread-delivery has been the default since athenaMT. Also replace boost with std.

Build area was cleaned as per request posted in the DB. The full software build will be performed

This merge request affects 2 packages:

• Control/AthenaKernel
• Trigger/TrigMonitoring/TrigSteerMonitor

Affected files list will not be printed in this case

Adding @ssnyder as watcher

added Core DQ Trigger master review-pending-level-1 labels

CI Result SUCCESS (hash 280677ef)

	Athena	AthSimulation	AthGeneration	AthAnalysis
externals
cmake
make
tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 62504]

removed review-pending-level-1 label

added review-approved label

merged

mentioned in commit dc462bc7

added sweep:ignore label