xAODEventShape: Enable thread-safety checking.

trivial static --> static const , now should pass the thread safety checker

This merge request affects 1 package:

• Event/xAOD/xAODEventShape

Adding @rbianchi as watcher

added EDM JetEtmiss master review-pending-level-1 labels

CI Result SUCCESS

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-20953-2019-02-07-05-12
Athena: number of compilation errors 0, warnings 3
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST 33462]

removed review-pending-level-1 label

added review-approved label

merged

mentioned in commit 7b228197

added sweep:ignore label