vm_map_delete
rv = vm_map_delete(map, start, start + size, &count);
vm_map_delete(kernel_map, addr, addr + size, &count);
vm_map_delete(map, trunc_page(addr), round_page(addr + size), &count);
result = vm_map_delete(map, start, end, &count);
vm_map_delete(&vm->vm_map,
int vm_map_delete (vm_map_t, vm_offset_t, vm_offset_t, int *);