The Evaluator's calibrate() is gone, so batch_unit class attrs and
trial_forward() method overrides have no callers — pure cruft from the
old auto-calibration design. Mechanical removal across 15 metric files.
Internal time-dim chunking (the part of batching that actually does
work) lives on as metric-owned _chunk_size constants set in __init__,
unaffected by this change.
Five files (color/multiple_objects/object_class/spatial_relationship/
optical_flow metrics) skipped — they have dataloader's in-flight
modifications uncommitted; left for that branch's cleanup pass.
Parity verified on fs-mbz-gpu-085: results byte-identical to v3
baseline.
shaoxiongduan
29eb4109cc