@andy512 over in the Mr. Toffee New Feature discussion there is an explanation from @Xarly about why they removed the Quests. In short, it said the quests were an underperforming feature and that players weren’t claiming the rewards. Check out that thread for more info.
Just wanted to re-emphasise that that is indeed the truth. I take pride in being honest and clear with my communities. Quests were not a feature that was highly used by the players, hence why it got reworked into Mr Toffee's Fair. There are tweaks on the way to make the feature more appealing but that is the sole reason behind this change.