IDC overlay cleanup

This MR removes a lot of obsolete methods from the IDC overlay base classses.

/cc @jchapman

Jenkins please retry a build

This merge request affects 13 packages:

• Event/EventOverlay/EventOverlayJobTransforms
• Event/EventOverlay/IDC_OverlayBase
• MuonSpectrometer/MuonDigitization/CSC_Digitization
• MuonSpectrometer/MuonDigitization/MDT_Digitization
• MuonSpectrometer/MuonDigitization/RPC_Digitization
• MuonSpectrometer/MuonDigitization/TGC_Digitization
• MuonSpectrometer/MuonOverlay/CscOverlay
• MuonSpectrometer/MuonOverlay/MdtOverlay
• MuonSpectrometer/MuonOverlay/MuonOverlayBase
• MuonSpectrometer/MuonOverlay/MuonTruthOverlay
• MuonSpectrometer/MuonOverlay/RpcOverlay
• MuonSpectrometer/MuonOverlay/TgcOverlay
• Simulation/Tools/RDOAnalysis

Adding @jchapman ,@rosati ,@wleight ,@tkharlam ,@ahaas ,@vpascuzz ,@tadej as watchers

added Digitization EDM MuonSpectrometer Simulation master labels

CI Result SUCCESS

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-21059-2019-02-12-14-04
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST 33677]

unmarked as a Work In Progress

changed the description

added review-pending-level-1 label

mentioned in merge request !21148 (merged)

Clear, approving.

Pavol [as L2 MR shifter]

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

merged

mentioned in commit a9a6908a

added sweep:ignore label