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The bug is located in changing color of the counters load
(BunchViewFrame). Repeated
TGTextButton->SetTextColor(color) result in  increasing cpu usage.
Bug in the TGTextButton realization.

There was a loop over list of canvases and deleting it. Canvas
destructor call erasing itself from canvas list. So during the loop
the iterator became invalidated. The bug came from removing iterator
based for loop to range based loop with removing some logic. There was
not comment about this complicated behaivior.

The solution is to copy canvas pointers to temporary buffer and delete
it thru the loop of temp. buffer. Initial canvas list will auto cleared.

1. Remove all call from EnergyCalibrationCamac which works
with counters, coincidence scheme diskriminators and delay line for
counters

2. Remove configuration of the delay line in the DelayLineDialog

no special case for reference