client rpc: Drop unused return value of virNetClientSendNonBlock
client rpc: Drop unused return value of virNetClientSendNonBlock

As we never drop non-blocking calls, the return value that used to
indicate a call was dropped is no longer needed.

novel/fbsd-libvirt,novel/fbsd-libvirt,rlaager/libvirt,wiedi/libvirt,jfehlig/libvirt,cbosdo/libvirt,trainstack/libvirt,olafhering/libvirt,dumbbell/libvirt,warewolf/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,datto/libvirt,datto/libvirt,trainstack/libvirt,taget/libvirt,taget/libvirt,bjzhang/libvirt,warewolf/libvirt,datto/libvirt,zippy2/libvirt,shugaoye/libvirt,rmarwaha/libvirt,nertpinx/libvirt,agx/libvirt,siboulet/libvirt-openvz,jeckersb/libvirt,bjzhang/libvirt,agx/libvirt,datto/libvirt,agx/libvirt,jeckersb/libvirt,warewolf/libvirt,nertpinx/libvirt,dumbbell/libvirt,jardasgit/libvirt,emaste/libvirt,eskultety/libvirt,zhlcindy/libvirt-1.1.4-maintain,novel/fbsd-libvirt,fabianfreyer/libvirt,rmarwaha/libvirt,nertpinx/libvirt,elmarco/libvirt,shugaoye/libvirt,rlaager/libvirt,novel/fbsd-libvirt,wiedi/libvirt,wiedi/libvirt,zippy2/libvirt,jardasgit/libvirt,novel/fbsd-libvirt,rmarwaha/libvirt,rmarwaha/libvirt1,rlaager/libvirt,zhlcindy/libvirt-1.1.4-maintain,novel/fbsd-libvirt,jfehlig/libvirt,nertpinx/libvirt,elmarco/libvirt,cbosdo/libvirt,rmarwaha/libvirt1,andreabolognani/libvirt,VenkatDatta/libvirt,VenkatDatta/libvirt,emaste/libvirt,rmarwaha/libvirt,emaste/libvirt,VenkatDatta/libvirt,rmarwaha/libvirt1,bjzhang/libvirt,olafhering/libvirt,agx/libvirt,eskultety/libvirt,warewolf/libvirt,siboulet/libvirt-openvz,emaste/libvirt,warewolf/libvirt,rmarwaha/libvirt1,trainstack/libvirt,siboulet/libvirt-openvz,fabianfreyer/libvirt,cbosdo/libvirt,jfehlig/libvirt,eskultety/libvirt,trainstack/libvirt,olafhering/libvirt,eskultety/libvirt,jardasgit/libvirt,libvirt/libvirt,elmarco/libvirt,zhlcindy/libvirt-1.1.4-maintain,crobinso/libvirt,fabianfreyer/libvirt,crobinso/libvirt,rlaager/libvirt,libvirt/libvirt,novel/fbsd-libvirt,iam-TJ/libvirt,trainstack/libvirt,agx/libvirt,warewolf/libvirt,wiedi/libvirt,taget/libvirt,cbosdo/libvirt,libvirt/libvirt,taget/libvirt,wiedi/libvirt,cbosdo/libvirt,siboulet/libvirt-openvz,andreabolognani/libvirt,jeckersb/libvirt,elmarco/libvirt,dumbbell/libvirt,taget/libvirt,iam-TJ/libvirt,VenkatDatta/libvirt,trainstack/libvirt,rmarwaha/libvirt,wiedi/libvirt,dumbbell/libvirt,bjzhang/libvirt,andreabolognani/libvirt,crobinso/libvirt,jardasgit/libvirt,dumbbell/libvirt,rmarwaha/libvirt,wiedi/libvirt,andreabolognani/libvirt,emaste/libvirt,zippy2/libvirt,fabianfreyer/libvirt,bjzhang/libvirt,emaste/libvirt,elmarco/libvirt,novel/fbsd-libvirt,zhlcindy/libvirt-1.1.4-maintain,jardasgit/libvirt,jeckersb/libvirt,siboulet/libvirt-openvz,novel/fbsd-libvirt,dumbbell/libvirt,rlaager/libvirt,emaste/libvirt,jfehlig/libvirt,andreabolognani/libvirt,jeckersb/libvirt,iam-TJ/libvirt,warewolf/libvirt,jeckersb/libvirt,rmarwaha/libvirt1,olafhering/libvirt,iam-TJ/libvirt,iam-TJ/libvirt,iam-TJ/libvirt,zippy2/libvirt,trainstack/libvirt,rmarwaha/libvirt1,shugaoye/libvirt,jeckersb/libvirt,libvirt/libvirt,shugaoye/libvirt,shugaoye/libvirt,zhlcindy/libvirt-1.1.4-maintain,nertpinx/libvirt,eskultety/libvirt,datto/libvirt,iam-TJ/libvirt,crobinso/libvirt