Remove non-null assert
Remove non-null assert

smoogipoo/osu,smoogipoo/osu,NeoAdonis/osu,smoogipooo/osu,ppy/osu,peppy/osu,smoogipoo/osu,UselessToucan/osu,ppy/osu,peppy/osu-new,UselessToucan/osu,NeoAdonis/osu,NeoAdonis/osu,peppy/osu,peppy/osu,ppy/osu,UselessToucan/osu