xinput-calibrator 0.7.5: fix calibration script

The 'auto' format switched to 'xorg.conf.d' which broke the script. The pointercal package also installed an 'empty' pointercal by default, which also broke the script. Fix these 2 in one go.

Also remove the hal script since hal isn't supported in the oe-core universe anymore

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>