Revert "Merge branch '21.9' into '21.9'"

This reverts merge request !20801 (merged)

This merge request affects 1 package:

• InnerDetector/InDetValidation/InDetPhysValMonitoring

added 21.9 InnerDetector review-pending-level-1 labels

merged

mentioned in commit 3230422f

CI Result SUCCESS

	Athena
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-20829-2019-02-01-21-16
Athena: number of compilation errors 0, warnings 166
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