Replace auto -> none for <'max-width'> and <'max-height'>
Replace auto -> none for <'max-width'> and <'max-height'>

<'max-width'> has `none` value since the beginning, not `auto`.
References:
https://www.w3.org/TR/CSS2/visudet.html#min-max-widths
https://drafts.csswg.org/css-sizing-3/#max-size-properties
mdn/data