[css-inline] Disallow `auto` in `text-box` shorthand

[chromium-helper]

CSSWG added the following resolution(s):

RESOLVED: Drop the auto value in the text-box shorthand

in w3c/csswg-drafts#10748 (comment)

[chromium-helper]

I have filed issues.chromium.org/365736079

That is all that can be done here, closing issue.

[chromium-helper]

CSSWG added the following resolution(s):

• RESOLVED: revert the previous resolution : allow all combinations for `text-box`

in w3c/csswg-drafts#10748 (comment)