Simplify exciter code. No functional change... I hope!
Simplify exciter code. No functional change... I hope!

adiknoth/calf,jnetterf/calf,adiknoth/calf,zamaudio/calf-LR4,zamaudio/calf-LR4,jnetterf/calf,jnetterf/calf,adiknoth/calf,zamaudio/calf-LR4,adiknoth/calf,adiknoth/calf,zamaudio/calf-LR4,jnetterf/calf,jnetterf/calf,zamaudio/calf-LR4