Use fallback solution to deal with missing SciFi contraction calibration constants

The following discussion from !3557 (merged) should be addressed:

• @gunther started a discussion: (+3 comments)

  @isanders I am a bit worried about this switch, shoudn't we always apply a calibration which can be zero in case no condition for this exists? otherwise this seems error-prone if someone forgets to toggle this

Relevant MR Detector!422 (merged)