[css-table] made small editorial change

Author: gregwhitworth

css-tables-3/Overview.bs

@@ -2585,7 +2585,6 @@ spec:css21; type:property; text:max-width
 
 		<div class="issue">
 			Chrome simplified this to just matching :empty.
-			Should we match?
 		</div>
 
 		<pre class="propdef">