Since rev. 1.94 of netinet/in.c, the netinet layer frees all its multicast memberships, when interface is detached. Thus, when an underlying interface is detached, we do not need to free our multicast memberships.
Since rev. 1.94 of netinet/in.c, the netinet layer frees all its
multicast memberships, when interface is detached. Thus, when
an underlying interface is detached, we do not need to free
our multicast memberships.

Reviewed by:	bms

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase