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/ActsRegionsOfInterest/src/TestRoICreatorTool.cxx

@@ -16,8 +16,6 @@ StatusCode TestRoICreatorTool::initialize()
 {
   ATH_MSG_DEBUG("Inizializing " << name() << " ..." );
 
-  ATH_CHECK(m_roiCollectionKey.initialize());
-
   // Check consistency
   // We need at least one entry
   if (m_eta_center_rois.size() == 0) {