AthenaBaseComps: remove setProperties(), delete AthHistogram classes

Frank Winklmeierrequested to merge
fwinkl/athena:fwinkl_20201211T103934 into master

Replace deprecated setProperties calls with bindPropertiesTo in the classes overriding sysInitialize. For the unit tests it's only needed for standalone tools.

Also delete unused AthHistogramFilterAlgorithm and AthHistogramTool classes.

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