[css-conditional-5] There is no container-type:style (w3c#10709)

Co-authored-by: Rune Lillesveen <futhark@chromium.org>

Author: lilles

css-conditional-5/Overview.bs

@@ -536,10 +536,6 @@ Creating Query Containers: the 'container-type' property</h3>
 		This can be useful for toggling behavior across multiple properties:
 
 		<pre class=lang-css>
-		section {
-		  container-type: style;
-		}
-
 		@container style(--cards: small) {
 		  article {
 		    border: thin solid silver;