Remove the inexistent function in comments
Remove the inexistent function in comments

virNodeDeviceLookupByKey is inexistent.

fabianfreyer/libvirt,zippy2/libvirt,trainstack/libvirt,rlaager/libvirt,fabianfreyer/libvirt,agx/libvirt,cbosdo/libvirt,cbosdo/libvirt,trainstack/libvirt,fabianfreyer/libvirt,zippy2/libvirt,rlaager/libvirt,bjzhang/libvirt,andreabolognani/libvirt,datto/libvirt,eskultety/libvirt,VenkatDatta/libvirt,olafhering/libvirt,trainstack/libvirt,jfehlig/libvirt,iam-TJ/libvirt,zhlcindy/libvirt-1.1.4-maintain,jardasgit/libvirt,iam-TJ/libvirt,rlaager/libvirt,jardasgit/libvirt,libvirt/libvirt,iam-TJ/libvirt,andreabolognani/libvirt,siboulet/libvirt-openvz,olafhering/libvirt,bjzhang/libvirt,zhlcindy/libvirt-1.1.4-maintain,andreabolognani/libvirt,VenkatDatta/libvirt,jfehlig/libvirt,libvirt/libvirt,trainstack/libvirt,shugaoye/libvirt,VenkatDatta/libvirt,elmarco/libvirt,jfehlig/libvirt,iam-TJ/libvirt,iam-TJ/libvirt,elmarco/libvirt,datto/libvirt,datto/libvirt,elmarco/libvirt,iam-TJ/libvirt,andreabolognani/libvirt,nertpinx/libvirt,elmarco/libvirt,siboulet/libvirt-openvz,zhlcindy/libvirt-1.1.4-maintain,rlaager/libvirt,trainstack/libvirt,jardasgit/libvirt,iam-TJ/libvirt,nertpinx/libvirt,datto/libvirt,olafhering/libvirt,zippy2/libvirt,andreabolognani/libvirt,bjzhang/libvirt,zhlcindy/libvirt-1.1.4-maintain,nertpinx/libvirt,cbosdo/libvirt,crobinso/libvirt,cbosdo/libvirt,siboulet/libvirt-openvz,taget/libvirt,taget/libvirt,jfehlig/libvirt,taget/libvirt,shugaoye/libvirt,bjzhang/libvirt,crobinso/libvirt,agx/libvirt,cbosdo/libvirt,rlaager/libvirt,shugaoye/libvirt,agx/libvirt,siboulet/libvirt-openvz,agx/libvirt,zhlcindy/libvirt-1.1.4-maintain,eskultety/libvirt,crobinso/libvirt,trainstack/libvirt,nertpinx/libvirt,libvirt/libvirt,shugaoye/libvirt,eskultety/libvirt,crobinso/libvirt,agx/libvirt,bjzhang/libvirt,datto/libvirt,fabianfreyer/libvirt,shugaoye/libvirt,zippy2/libvirt,olafhering/libvirt,nertpinx/libvirt,libvirt/libvirt,trainstack/libvirt,siboulet/libvirt-openvz,VenkatDatta/libvirt,eskultety/libvirt,elmarco/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,eskultety/libvirt,jardasgit/libvirt,taget/libvirt,VenkatDatta/libvirt,taget/libvirt