git-lfs complains about overridden URLs

Ref. [templates/config:71](https://github.com/mkwmms/ansible-github/blob/421a8548068935058bcf63465d057f695feee97c/templates/config#L71)

```
# FIXME: git-lfs complains about overridden URLs
[url "git@github.com:"]
        insteadOf = "gh:"
        # pushInsteadOf = "github:"
        # pushInsteadOf = "git://github.com/"

…
```
