pimd: Remove igmp_add_group_by_addr unneeded parameter

The interface name is already passed in as
part of the 'struct igrmp *group' pointer.
No need to do it twice.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Tested-by: NetDEF CI System <cisystem@netdef.org>
Acked-by: Jafar Al-Gharaibeh <jafar@atcorp.com>
diff --git a/pimd/pim_igmp.h b/pimd/pim_igmp.h
index f8a31cd..ab39615 100644
--- a/pimd/pim_igmp.h
+++ b/pimd/pim_igmp.h
@@ -163,8 +163,7 @@
 };
 
 struct igmp_group *igmp_add_group_by_addr(struct igmp_sock *igmp,
-					  struct in_addr group_addr,
-					  const char *ifname);
+					  struct in_addr group_addr);
 
 void igmp_group_delete_empty_include(struct igmp_group *group);