/**
 * Delete all invitations to a given group.
 *
 * @param int $group_id ID of the group whose invitations are being deleted.
 *
 * @return int|null Number of rows records deleted on success, null on failure.
 */
function groups_delete_all_group_invites($group_id)
{
    return BP_Groups_Group::delete_all_invites($group_id);
}