[css-color-4] Remove dangling reference to CMYKOGV), #6765

Author: svgeesus

css-color-4/Overview.bs

@@ -765,7 +765,6 @@ Representing Colors: the <<color>> type</h2>
 	(how far the color is from a neutral grey).
 	The others use a <dfn export>rectangular orthogonal color</dfn> model,
 	specifying color using three
-	(or more, in the case of CMYK or CMYKOGV)
 	orthogonal component axes.
 
 	The [=color functions=] available in Level 4 are
@@ -6467,7 +6466,7 @@ Changes</h2>
 	<li>Update requirement from WCAG 2.0 to 2.1</li>
 	<li>Fully specify Unicode characters used for serialization</li>
 	<li>Define serialization of special named colors</li>
-	<li>Define serialization of ''device-cmyk()''</li>
+	<li>Define serialization of device-cmyk()</li>
 	<li>Define serialization of ''color()''</li>
 	<li>Fully define RGB serialization, in maximally web-compatible way</li>
 	<li>Define serialization of Lab and LCH</li>