revert duotone correction for non-zero time-shift

When the first adc has a non-zero time shift, the IOP model will subtract an offset from the duotone result to compensate for the phase shift in the duotone caused by the time shift.

The purpose of the correction was so the duotone looked correct, but it's not actually correct. The duotone calc result needs to match the DAQ trace of the duotone signal.

We'll need to change criteria for the gds tp screen duotone box and for timing checks in the IOP to allow for a different range of duotone values.

An alternative might be to shift the data on the DAQ stream, but that seems like a risky change.