libnetfilter-log: remove this package to use upstream one
This package is already part of OpenWrt releases and the same version, it is in OpenWrt 19.07. In this case, let's use upstream version. We don't need to have our own version.
This package is already part of OpenWrt releases and the same version, it is in OpenWrt 19.07. In this case, let's use upstream version. We don't need to have our own version.