Revert "Link: don't hide new link scores for mods"

This reverts commit f823d37cf83b846c4c3d0efb9886e5e8f8401605.
Revert ""% like it": get value from compute_votes"

This reverts commit d2368286dfc5138ddee912767fa75876cd1d1e48.
Revert "Stop displaying upvote/downvote numbers"

This reverts commit 8c9ad4e2f600f4aa608ff1ee9ca0691b7d5373ed.