drop obsolete CaloHiveEx

The CaloHive Example was an early demonstrator of multi-threaded reconstruction. Useless by now, so removing.

cc @ssnyder

This merge request affects 1 package:

• Calorimeter/CaloExample/CaloHiveEx

This merge request affects 5 files:

• Calorimeter/CaloExample/CaloHiveEx/CMakeLists.txt
• Calorimeter/CaloExample/CaloHiveEx/share/CaloHiveDeps.py
• Calorimeter/CaloExample/CaloHiveEx/share/CaloHiveExOpts.py
• Calorimeter/CaloExample/CaloHiveEx/share/CaloHiveExOpts_SerialOnly.py
• Calorimeter/CaloExample/CaloHiveEx/share/CaloHiveExOpts_alt.py

Adding @pavol as watcher

added Calorimeter main review-pending-level-1 labels

CI Result SUCCESS (hash 9c895ff8)

	Athena	AthSimulation	AthGeneration	AnalysisBase	AthAnalysis	DetCommon
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
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 74660]

CI clean, changes look good from an L1 point of view. Approving - L1

removed review-pending-level-1 label

added review-approved label

merged

mentioned in commit 55e99e42