Use packages from upstream
For Turris OS 4.x, owfs isn't compiled from our feeds as there is PKG_MD5SUM instead of PKG_HASH.
I have been able to compile locally owfs in a newer version and I sent pull request to upstream. It's waiting to get merged. I don't think we want to maintain this package in our feeds.
While I was in sending pull requests to OpenWRT, I also noticed there is findutils in our feeds, which is not different from the upstream one. It took me a while to figure out what's happening, when I edited findutils from OpenWRT feeds and there were no changes, which I did. So, let's use the upstream one, too as I think we don't want to maintain it.