I removed Ondotori channel's plots that are related rack.
This is due to the removal of the temperature sensor that was measuring the rack temperature (klog 23213, 23238).

I also removed the microphone channel at PR booth.
As reported klog 23044, the PR booth microphone has been disconnected and moved to another place.
The PEM sensor is supposed to be filled with 0 when it is not acquiring a signal, but there is an error when creating the spectrogram on SummaryPage.
Therefore, I have temporarily deleted this channel.