clean up obsolete egamma doc

clean up obsolete egamma doc

This merge request affects 4 packages:

• Reconstruction/egamma/egammaCaloTools
• Reconstruction/egamma/egammaInterfaces
• Reconstruction/egamma/egammaTools
• Reconstruction/egamma/egammaTrackTools

Affected files list will not be printed in this case

Adding @goetz as watcher

added Egamma Reconstruction main review-pending-level-1 labels

CI Result SUCCESS (hash 53a73534)

	Athena	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
AthAnalysis: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-EL9 9947] (remote access info)

MR looks fine from L1 perspective, CI shows no problems - approving

Cheers, Qiyu, L1

removed review-pending-level-1 label

added review-approved label

merged

mentioned in commit 3ec4433a