[PATCH] remove unused ethertap_mc support

There is no Kconfig option to enable CONFIG_ETHERTAP_MC, and if you could the resulting source would not build. That code uses the obsolete protinfo union, then further pokes into a privately defined netlink structure to setup the groups. Remove this broken code altogether. It'd be nice to

[PATCH] remove unused ethertap_mc support

There is no Kconfig option to enable CONFIG_ETHERTAP_MC, and if you could the resulting source would not build. That code uses the obsolete protinfo union, then further pokes into a privately defined netlink structure to setup the groups. Remove this broken code altogether. It'd be nice to