Remove unused "effects" parameter from it_var_veh_part.
Fix some unused parameter warnings.
Remove "rabbit snare" as it doesn't do anything and other snares exist.
Add some stubs for unimplemented trap functions and fix some warnings.
Ignore unused parameters in animation_*.
Remove unused parameters in mapgen_parking_lot() and mapgen_gas_station().
Remove unused parameters from editmap functions.
Explicitly ignore a bunch of unused parameters.
Remove unused player parameter from color_in_inventory().
Remove unused player parameter from item::has_technique.
Remove unused player parameter from item::use() (which is itself unused).
Ignore a few unused parameters.
Remove unused game parameter from map::unboard_vehicle().
Remove unused game parameter from map::add_graffiti().
Remove unused parameters from one of the map::spawn_item()s.
Ignore a couple unused parameters.
Rearrange map::spawn_item() parameters to make more sense.
Fix camp_at() radius parameter (probably).
Fix material_type._cut_dmg_verb (was being initialized to bash_dmg_verb).
Remove unused monster parameter from roll_stuck_penalty().