Method remove

src/butil/thread_local.cpp:58–67

    }

    void remove(Fn fn, void* arg) {
        std::vector<Pair>::iterator
            it = std::find(_fns.begin(), _fns.end(), std::make_pair(fn, arg));
        if (it != _fns.end()) {
            std::vector<Pair>::iterator ite = it + 1;
            for (; ite != _fns.end() && ite->first == fn && ite->second == arg;
                  ++ite) {}
            _fns.erase(it, ite);
        }
    }

private:
    std::vector<Pair> _fns;