The W axis homing already drives toward the configured limit (home_dir
in aux.json, default '-') and lands at home_position_mm = 0, so
'home' and 'zero' are the same point. Remove the now-redundant 'W
Origin' (move-to-zero) and 'Set W to 0' map-marker buttons; keep just
W-, W+, and a single Home W button. Also drop the unused
aux_move_zero / aux_set_zero JS handlers.
Henrik Muehe
2413fc49ab