Still available! You can find them at: Settings->Post options->Swipe actions

Personally I keep upvote/downvote as the first two swipe actions, third as the save post.

Edit: pro-tip I just found after seeing someone else do it: long press on a setting in sync will copy a link to that setting. And you can paste it in a comment as such:

Settings shortcut: Post options > Swipe to hide