[css-overflow-3] Remove issue about hanging-punctuation; this is out-of-scope (belongs to Text). See also https://lists.w3.org/Archives/Public/www-style/2016Mar/0073.html

Author: fantasai

css-overflow-3/Overview.bs

@@ -116,8 +116,6 @@ Types of overflow</h2>
 	<a href="https://www.w3.org/TR/CSS2/ui.html#dynamic-outlines">outlines</a>,
 	etc.
 
-	Issue: What about 'hanging-punctuation'?
-
 	Since some effects in CSS (for example, the blurs in
 	'text-shadow' [[CSS3TEXT]] and 'box-shadow' [[CSS3BG]])
 	do not define what visual extent they cover, the extent