After commit 
eb929a91b213 ("tipc: improve poll() for group member socket"),
it is no longer used.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 
        return 0;
 }
 
-int tipc_group_size(struct tipc_group *grp)
-{
-       return grp->member_cnt;
-}
-
 struct tipc_group *tipc_group_create(struct net *net, u32 portid,
                                     struct tipc_group_req *mreq,
                                     bool *group_is_open)