http://www.douban.com/group/topic/32935166/
芽衣
git rm –cached filename git commit -m “hehe” git push origin branch
cloudaice
上面的一些解法只是保持以后不会跟踪了，要想彻底删除的方法如下：
git filter-branch –index-filter ‘git rm -r –cached –ignore-unmatch path/to/your/file’ HEAD
git push origin master –force
rm -rf .git/refs/original/
git reflog expire –expire=now –all
git gc –prune=now
git gc –aggressive –prune=now
