gssapi: remove dead code
gssapi: remove dead code

Reviewed-by: Andreas Schneider <5be00ddc76278cf6077f5047ca3384a88460c671@cryptomilk.org>

robxu9/libssh,taikoo/libssh,DouglasHeriot/libssh,robxu9/libssh,kedazo/libssh,mwgoldsmith/ssh,mwgoldsmith/libssh,wangshawn/libssh,pouete/libssh,mwgoldsmith/libssh,sebadoom/libssh,mwgoldsmith/ssh,elastichosts/libssh,wangshawn/libssh,sebadoom/libssh,pouete/libssh,DouglasHeriot/libssh,robxu9/libssh,mwgoldsmith/libssh,nviennot/libssh,DouglasHeriot/libssh,Distrotech/libssh,taikoo/libssh,robxu9/libssh,mwgoldsmith/ssh,pouete/libssh,kedazo/libssh,bigcat26/libssh-mod,Distrotech/libssh,nviennot/libssh,sebadoom/libssh,sebadoom/libssh,mwgoldsmith/libssh,pouete/libssh,taikoo/libssh,taikoo/libssh,kedazo/libssh,bigcat26/libssh-mod,bigcat26/libssh-mod,nviennot/libssh,wangshawn/libssh,elastichosts/libssh,nviennot/libssh,DouglasHeriot/libssh,elastichosts/libssh,kedazo/libssh,bigcat26/libssh-mod,Distrotech/libssh,Distrotech/libssh,wangshawn/libssh,mwgoldsmith/ssh