Update of tracking CA flags: doDigitalROTCreation + holeSearchInGX2Fit + TrackFitterType + KalmanUpdator
Continuation of tracking CA flags migration (see ATLASRECTS-7467):
- removing unused
doDigitalROTCreation
+holeSearchInGX2Fit
- migrating
TrackFitterType
+KalmanUpdator
(+ general config clean up)
Checked to keep Run 3 and Run 4 outputs unchanged