[css-writing-modes-3] Deferred paged media issue to L4

Author: kojiishi

css-writing-modes-3/Overview.bs

@@ -2366,8 +2366,6 @@ Propagation to the Initial Containing Block</h3>
   thereby affecting the layout of the root element
   and the scrolling direction of the viewport.
 
-  Issue: Does it also propagate to @page boxes?
-
 <h3 id="page-direction">
 Page Flow: the page progression direction</h2>