Add linter for redundant descriptions

[queengooborg]

When going through the CSS property values, I noticed that there were a lot of features with redundant descriptions, i.e. css.properties.width.auto had the description of <code>auto</code>. These descriptions are redundant, and should be disallowed. This PR introduces a linter update to check for exactly this case.

Note: this PR will fail CI as there are many instances in our data that fail this linter rule.

[Elchi3]

I think we now need something like this in the fix script:

if (error.ruleName === 'redundant') {
  delete feature.compat.description;
}

[Elchi3]

Requesting the change stated in my previous comment as that made me generate #23407 with the fixes.

[Elchi3]

I guess that works too :) Thanks! 👍