ATR-23009 - remove FSNOSEED from egamma chains

Need to remove FSNOSEED from gamma chains since they are not meant to be on full scan. Besides chains described in ATR-23009 one gamma+jets chan was also changed so no FSNOSEED for gamma part. Also I noticed that one chain had "__" instead of "_", chawed that. And I removed "boffperf_split" and added 0deta320 for non tagged jets in two b+j chains (ATR-22937).

All tests passed and reference files are updated.