Remove gratuitous ARP plumbing which breaks Solaris 10
Remove gratuitous ARP plumbing which breaks Solaris 10

Suggested by Kazuyoshi Aizawa and tested on S10, S11, oi_151a with both
IPv6 and Legacy IP.

Signed-off-by: David Woodhouse <b460d66aaf00c296a3db1c1d9eeafc081d5f7d70@intel.com>

chadcatlett/openconnect,atyndall/openconnect,brandt/openconnect,don-johnny/openconnect,mveplus/openconnect-client,lins05/openconnect,cernekee/openconnect,neshema/openconnect,mveplus/openconnect-client,don-johnny/openconnect,don-johnny/openconnect,certik/openconnect,lins05/openconnect,nmav/openconnect-mine,mtmiller/openconnect,mtmiller/openconnect,atyndall/openconnect,liiir1985/openconnect,cernekee/openconnect,matlockx/openconnect,matlockx/openconnect,atyndall/openconnect,mveplus/openconnect-client,mtmiller/openconnect,cernekee/openconnect,liiir1985/openconnect,nmav/openconnect-mine,certik/openconnect,brandt/openconnect,neshema/openconnect,chadcatlett/openconnect,chadcatlett/openconnect,atyndall/openconnect,sihde/openconnect,chadcatlett/openconnect,brandt/openconnect,brandt/openconnect,cernekee/openconnect,liiir1985/openconnect,nmav/openconnect-mine,mveplus/openconnect-client,liiir1985/openconnect,matlockx/openconnect,nmav/openconnect-mine,lins05/openconnect,sihde/openconnect,neshema/openconnect,don-johnny/openconnect,neshema/openconnect,mtmiller/openconnect,lins05/openconnect,certik/openconnect,sihde/openconnect,matlockx/openconnect