[CSS Pseudo] Remove comment for resolved issue

Issue #11011 was resolved to take forced-colors and color-scheme from the originating element. Remove the note for the issue.

Author: schenney-chromium

css-pseudo-4/Overview.bs

@@ -926,7 +926,6 @@ Styling Highlights</h3>
   applied to the text
   by the <a>originating element</a> and its ancestors and descendants.
 
-
   For any properties not listed above,
   but which are required to resolve the values of applicable properties,
   their [=computed values=] are copied from those of the [=originating element=],
@@ -941,8 +940,6 @@ Styling Highlights</h3>
     <li>[=custom properties=] [[!CSS-VARIABLES-1]] (used in ''var()'' substitutions)
   </ul>
 
-  ISSUE(11011): Should 'color-scheme' go here, or in the list of applicable properties?
-
 <!-- Add this back if for some reason someone wants to implement 'outline'?
   The outline, if supported, must be drawn
   around the union of the active portions of the <a>highlight overlay</a>