Remove threshold, enrollment stages, frame count, and timing
experiments — none produced reliable security on the 04f3:0c6e
power-button sensor due to bz3's inability to distinguish adjacent
fingers on small dark images from this form factor.
Retained fixes:
- ELAN_CALIBRATION_MAX_DELTA=65535: skip unreliable recalibration loop
- Polling fallback in CAPTURE_READ_DATA: prevent sensor overheating
- Dark frame → fpi_ssm_mark_completed: graceful end-of-swipe
All other values restored to upstream v1.94.10 defaults.
2934ca2b6e