rem: return ERR_VM_INVALID_ASPACE;
add: return B_BAD_TEAM_ID;
context: vm_delete_area(aspace_id aid, area_id rid){	vm_address_space *aspace;	status_t err;	aspace = vm_get_aspace_by_id(aid);	if (aspace == NULL)		return ERR_VM_INVALID_ASPACE;	err = _vm_delete_area(aspace, rid);	vm_put_aspace(aspace);	return err;}