[css-text-3] Drop li from UA default suggested style rule.

Author: fantasai

css-text-3/Overview.bs

@@ -5857,12 +5857,9 @@ Appendix C: Default UA Stylesheet</h2>
 
   <div class="example">
     <pre>
-      /* make list items and option elements align together */
-      li, option { text-align: match-parent; }</pre>
+      /* make option elements align together */
+      option { text-align: match-parent; }</pre>
   </div>
-  <p class="feedback issue">If you find any issues, recommendations to add, or corrections,
-    please send the information to <a href="mailto:www-style@w3.org">www-style@w3.org</a>
-    with <kbd>[css-text]</kbd> in the subject line.</p>
 
 <h2 class="no-num" id="script-groups">
 Appendix D: Scripts and Spacing</h2>