[css-values-4] One more go at fixing the URL parsing encoding. #9301

Author: tabatkins

css-values-4/Overview.bs

@@ -1130,10 +1130,11 @@ URL Processing Model</h4>
 			with [=fetch/processresponseconsumebody=] set to |processResponse|.
 	</div>
 
-	When [[url#percent-encoded-bytes|percent-encoding a URL]] from CSS for any purpose,
-	the UTF-8 encoding must be used
-	to produce the bytes to be encoded,
-	regardless of the original stylesheet encoding.
+	When parsing URLs in CSS,
+	the [=URL parser's=] <var ignore>encoding</var> argument
+	must be omitted
+	(i.e. use the default, UTF-8),
+	regardless of the stylesheet encoding.
 
 
 <h2 id="numeric-types">