[2.1.*] Factorio Data repo contains old files

[Aronson]

The factorio-data repo looks to be mostly updated to the latest 2.1.* data, however it contains several old files that should be removed, validated against the files present in my local install.

Specifically the ones I found are under the quality mod - data-updates.lua and prototypes/recycling.lua. These look like they are probably from the recycler stuff before it was moved from quality into its own mod. The recycling file even references recipe.category, which no longer exists.