revert 2a24ed6fc9 and 4ecaee73db.
revert 2a24ed6fc9 and 4ecaee73db.

already non-nullable where it matters, existing error is a different issue

ppy/osu-web,LiquidPL/osu-web,nanaya/osu-web,LiquidPL/osu-web,nanaya/osu-web,nanaya/osu-web,nanaya/osu-web,LiquidPL/osu-web,ppy/osu-web,notbakaneko/osu-web,notbakaneko/osu-web,ppy/osu-web,LiquidPL/osu-web,ppy/osu-web,notbakaneko/osu-web,ppy/osu-web,notbakaneko/osu-web,nanaya/osu-web,notbakaneko/osu-web,LiquidPL/osu-web