Re: [csswg-drafts] [css-color-4] `<hue> | none` is redundant (#7816)

There are no tests for this in WPT:

```
chris@SuperNomad:/mnt/c/Users/chris/Documents/GitHub/wpt/css/css-color$ grep hsl\( hsl*.*
hsl-001.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsl-001.html:<meta name="assert" content="hsl() with number and no alpha, also no comma">
hsl-001.html:    .test { background-color: hsl(120 100% 25%)}
hsl-002.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsl-002.html:<meta name="assert" content="hsl() with angle and no alpha, also no comma">
hsl-002.html:    .test {background-color: hsl(120deg 100% 25%)}
hsl-003.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsl-003.html:<meta name="assert" content="hsl() with number and numeric alpha, also no comma">
hsl-003.html:    .test {background-color: hsl(120 100% 25% / 1.0)}
hsl-004.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsl-004.html:<meta name="assert" content="hsl() with angle and numeric alpha, also no comma">
hsl-004.html:    .test { background-color: hsl(120deg 100% 25% / 1)}
hsl-005.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsl-005.html:<meta name="assert" content="hsl() with number and percent alpha, also no comma">
hsl-005.html:    .test { background-color: hsl(120 100% 25% / 100%)}
hsl-006.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsl-006.html:<meta name="assert" content="hsl() with angle and percent alpha, also no comma">
hsl-006.html:    .test { background-color: hsl(120deg 100% 25% / 100%)}
hsl-007.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsl-007.html:<meta name="assert" content="legacy hsl() with number and percent alpha, and commas">
hsl-007.html:    .test { background-color: hsl(120, 100%, 25%, 100%)}
hsl-008.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsl-008.html:<meta name="assert" content="legacy hsl() with angle and percent alpha, with commas">
hsl-008.html:    .test { background-color: hsl(120deg, 100%, 25%, 100%)}
hsla-001.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsla-002.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsla-003.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsla-004.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsla-005.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsla-006.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsla-007.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
hsla-008.html:<title>CSS Color 4: HSL functions hsl() and hsla()</title>
```

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Received on Wednesday, 5 October 2022 18:46:21 UTC