security: remove dead code from virSecurityDACGenLabel
security: remove dead code from virSecurityDACGenLabel

* src/security/security_dac.c: remove useless dead code.

Signed-off-by: Alex Jia <e236faec8cb8371bfb245ba3769a84afc9a11438@redhat.com>

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