Remove overlay_interface definition in neutron
Remove overlay_interface definition in neutron

This snuck in with other merges but is not used at this time.

channus/ursula,pgraziano/ursula,ryshah/ursula,rongzhus/ursula,knandya/ursula,channus/ursula,panxia6679/ursula,wupeiran/ursula,blueboxgroup/ursula,edtubillara/ursula,pgraziano/ursula,rongzhus/ursula,blueboxgroup/ursula,j2sol/ursula,pgraziano/ursula,narengan/ursula,fancyhe/ursula,narengan/ursula,twaldrop/ursula,persistent-ursula/ursula,panxia6679/ursula,fancyhe/ursula,knandya/ursula,nirajdp76/ursula,sivakom/ursula,j2sol/ursula,sivakom/ursula,sivakom/ursula,pgraziano/ursula,fancyhe/ursula,zrs233/ursula,channus/ursula,ryshah/ursula,twaldrop/ursula,ddaskal/ursula,fancyhe/ursula,wupeiran/ursula,edtubillara/ursula,narengan/ursula,nirajdp76/ursula,persistent-ursula/ursula,lihkin213/ursula,j2sol/ursula,knandya/ursula,zrs233/ursula,panxia6679/ursula,masteinhauser/ursula,blueboxgroup/ursula,ryshah/ursula,ddaskal/ursula,ddaskal/ursula,zrs233/ursula,rongzhus/ursula,wupeiran/ursula,nirajdp76/ursula,knandya/ursula,zrs233/ursula,lihkin213/ursula,masteinhauser/ursula,lihkin213/ursula,blueboxgroup/ursula,edtubillara/ursula,edtubillara/ursula,masteinhauser/ursula,rongzhus/ursula,lihkin213/ursula,nirajdp76/ursula,wupeiran/ursula,twaldrop/ursula,ddaskal/ursula,channus/ursula,j2sol/ursula,ryshah/ursula,twaldrop/ursula,persistent-ursula/ursula,narengan/ursula,persistent-ursula/ursula,panxia6679/ursula,masteinhauser/ursula