tauRec: remove outdated standalone script (ATLASRECTS-5647)

Remove the outdated standalone script, i.e. run_tau_standlone.py, and replace it with tau_standalone_ESDtoAOD.py.

added Reconstruction Tau master labels

This merge request affects 2 packages:

• Reconstruction/RecExample/RecExRecoTest
• Reconstruction/tauRec

Adding @goetz ,@martindl ,@xiaozhon ,@adbailey as watchers

added review-pending-level-1 label

CI Result SUCCESS (hash 9014e8fa)

	Athena	AthSimulation	AthGeneration	AnalysisBase
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
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 20051]

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

merged

mentioned in commit 2dae6800

added sweep:ignore label