I only know of addons hiding the quest helper for the main story at the worldmap, not one which hides them in the quests.
If so I guess the name got to do with quest and you should search the addons for quest with the search box at the top right.
Can you not abandon the quests you don't want to track?
If you're worried about losing track of where quest givers are(so you can go back to them later), the zone guide(basic feature in the game) can point you to where they are, when need be.