Drop unused link dir
Drop unused link dir

k0kubun/githubranking,k0kubun/githubranking,k0kubun/github-ranking,k0kubun/github-ranking,k0kubun/githubranking,k0kubun/githubranking,k0kubun/github-ranking,k0kubun/github-ranking,k0kubun/github-ranking,k0kubun/githubranking