[css-color-4][editorial] Remove extra pipe character, #9651

Author: svgeesus

css-color-4/Overview.bs

@@ -5489,7 +5489,7 @@ Sample Pseudocode for the Binary Search Gamut Mapping Algorithm with Local MINDE
 			<li>let |JND| be 0.02</li>
 			<li>let |epsilon| be 0.0001</li>
 			<!-- we already excluded spaces with no gamut limits in the first step, so this is fine -->
-			<li>let clip(|color|)| be a function which converts |color| to |destination|,
+			<li>let clip(|color|) be a function which converts |color| to |destination|,
 				converts all negative components to zero,
 				converts all components greater that one to one,
 				and returns the result