online: Remove hardcoded adc cutoffs from STS readout.

Change requested by @a.toia.

CC: @p.-a.loizeau, @d.smith

added BugFix Online mCBM labels

assigned to @fweig

enabled an automatic merge when the pipeline for fef1eef4 succeeds

Dear @v.friese,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

merged