[css-fonts-4] Remove font-variant @font-face descriptor, closes w3c#2531

Author: svgeesus

css-fonts-4/Overview.bs

@@ -2421,24 +2421,12 @@ body { font-family: DroidSans; }
 </div>
 
 <h3 id="font-rend-desc">
-Font features and variations: the 'font-variant!!descriptor', 'font-feature-settings!!descriptor', and 'font-variation-settings!!descriptor' descriptors</h3>
+Font features and variations: the 'font-feature-settings!!descriptor' and 'font-variation-settings!!descriptor' descriptors</h3>
 
-<pre class='descdef'>
-Name: font-variant
-Value: normal | none | [ <<common-lig-values>> || <<discretionary-lig-values>> || <<historical-lig-values>> ||
-        <<contextual-alt-values>> || stylistic(<<feature-value-name>>) || historical-forms ||
-        styleset(<<feature-value-name>>#) ||
-        character-variant(<<feature-value-name>>#) ||
-        swash(<<feature-value-name>>) ||
-        ornaments(<<feature-value-name>>) ||
-        annotation(<<feature-value-name>>) ||
-        [ small-caps | all-small-caps | petite-caps | all-petite-caps | unicase | titling-caps ] ||
-        <<numeric-figure-values>> || <<numeric-spacing-values>> || <<numeric-fraction-values>> || ordinal || slashed-zero ||
-        <<east-asian-variant-values>> || <<east-asian-width-values>> || ruby ||
-        [ sub | super ] ]
-Initial: normal
-For: @font-face
-</pre>
+<!--
+	font-variant descriptor removed at Fukuoka TPAC
+	https://github.com/w3c/csswg-drafts/issues/2531
+-->
 
 <pre class='descdef'>
 Name: font-feature-settings
@@ -2457,17 +2445,13 @@ For: @font-face
 These descriptors define initial settings that apply when the font defined by
 an ''@font-face'' rule is rendered.  They do not affect font selection.
 Values are identical to those defined for the corresponding
-'font-variant!!property', 'font-feature-settings!!property', and
+'font-feature-settings!!property' and
 'font-variation-settings!!property' properties defined below
 except that the <a>CSS-wide keywords</a> are omitted. When multiple font
 feature descriptors, properties, or variations are used, optionally along with a named instance,
 the cumulative effect on
 text rendering is detailed in the section
 [[#font-feature-variation-resolution]] below.
-In cases where specific values define synthesized fallback for certain
-'font-variant!!property' subproperties, the same synthesized fallback
-applies when used within those values are used with the
-'font-variant!!descriptor' descriptor.
 
 These descriptors set features and variation values
 on the font object which the ''@font-face'' rule represents,