[css-color-4] Remove hue interpolation 'specified', fix w3c#7750

Author: svgeesus

css-color-4/Overview.bs

@@ -4367,7 +4367,7 @@ Color Space for Interpolation</h3>
 		<dfn export>&lt;color-space></dfn> = &lt;rectangular-color-space> | &lt;polar-color-space>
 		<dfn export>&lt;rectangular-color-space></dfn> = ''srgb'' | ''srgb-linear'' | ''lab'' | ''oklab'' | ''xyz'' | ''xyz-d50'' | ''xyz-d65''
 		<dfn export>&lt;polar-color-space></dfn> = ''hsl'' | ''hwb'' | ''lch'' | ''oklch''
-		<dfn export>&lt;hue-interpolation-method></dfn> = [ shorter | longer | increasing | decreasing | specified ] hue
+		<dfn export>&lt;hue-interpolation-method></dfn> = [ shorter | longer | increasing | decreasing ] hue
 		<dfn export id="color-interpolation-method">&lt;color-interpolation-method></dfn> = in [ <<rectangular-color-space>> | <<polar-color-space>> <<hue-interpolation-method>>? ]
 	</pre>
 
@@ -4725,8 +4725,7 @@ Hue Interpolation</h3>
 	Specifying a hue interpolation strategy is already part of the <<color-interpolation-method>> syntax
 	via the <<hue-interpolation-method>> token.
 
-	Unless the type of hue interpolation is ''specified'',
-	both angles and their difference need to be constrained to [0, 360] prior to interpolation.
+	Both angles and their difference need to be constrained to [0, 360] prior to interpolation.
 	To do this, the minimum number of turns that fit in the lesser angle
 	is added or subtracted from both angles,
 	bringing the lesser angle into the range [0,360);
@@ -4793,10 +4792,6 @@ Hue Interpolation</h3>
 		}
 		</pre>
 
-<h4 id="hue-specified">
-<dfn export>specified</dfn></h4>
-
-	No fixup is performed. Angles are interpolated in the same way as every other component.
 
 <!--
  ██████   ██     ██    ███