Do not create views at offline level but only RoIs

This will replace the ACTS Event View maker with a simple algorithm for creating an RoI for later use in (e.g.) the clustering

Current sequence:

Tracking/Acts/ActsDataPreparation/test/runCompositeRoICode.py

@@ -8,7 +8,6 @@ def TestCompositeRoIToolCfg(flags,
                             **kwargs) -> ComponentAccumulator:
     acc = ComponentAccumulator()
 
-    kwargs.setdefault('RoIs', 'TestCompositeRoI')
     kwargs.setdefault('EtaCenters', [-1.2, 2.3, 3.8])
     kwargs.setdefault('PhiCenters', [0, 1, 2])
     kwargs.setdefault('HalfEtaWidths', [0.3, 0.1, 0.05])