RootCoreUtils+TileD3PDMaker: Fix clang warnings.

clang warnings: unused private data members

This merge request affects 2 packages:

• PhysicsAnalysis/D3PDMaker/TileD3PDMaker
• PhysicsAnalysis/D3PDTools/RootCoreUtils

Adding @krumnack as watcher

added Analysis master review-pending-level-1 labels

CI Result SUCCESS (hash 7b1fc3b1)

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 7079]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit ed1977fb

added sweep:ignore label