[LPD][Dark] fix: Remove hard check for consistent gain pixels

Description

While testing this MR for testing parallel gain darks. We expected the unexpected pixels for the gains for 900203 proposal runs.

I have hotfixed this in production

How Has This Been Tested?

CI

Relevant Documents (optional)

http://max-exfl-cal001.desy.de:8008/gpfs/exfel/d/cal/caldb_store/xfel/reports/CALLAB/FXE_DET_LPD1M-1/dark/dark_900203_r9008_r9009_r9010_241106_163047_452969.pdf

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist:

Reviewers

@schmidtp