Following tools still link libigt:
-------------------------
for i in intel*; do
  echo $i;
  readelf -d $i | grep libigt;
done 2>/dev/null | awk '
/^intel/ {
  name=$1
}
/NEEDED.*libigt.so/ {
  print "-", name
}
'
------------------------
- intel_audio_dump
- intel_backlight
- intel_display_crc
- intel_display_poller
- intel_dp_compliance
- intel_error_decode
- intel_firmware_decode
- intel_forcewaked
- intel_gem_info
- intel_gpu_frequency
- intel_gpu_time
- intel_gtt
- intel_guc_logger
- intel_gvtg_test
- intel_infoframes
- intel_l3_parity
- intel_lid
- intel_panel_fitter
- intel_perf_counters
- intel_reg
- intel_reg_checker
- intel_residency
- intel_stepping
- intel_vbt_decode
- intel_watermark