[css-multicol-1] removing inline issue that was resolved in 4689

Author: rachelandrew

css-multicol-1/Overview.bs

@@ -1280,8 +1280,6 @@ Filling Columns</h2>
 		</dd>
 	</dl>
 
-	Issue: We need to define the behavior of ''column-fill'' in continuous contexts. A previous resolution (<a href="https://github.com/w3c/csswg-drafts/issues/3224#issuecomment-468089503">3224</a>) defined that the property should only be consulted if the length of columns was constrained in the block dimension. This was reverted in (<a href="https://github.com/w3c/csswg-drafts/issues/4036#issuecomment-531646703">4036</a>) pending further discussion.
-
 	In continuous contexts, this property does not have any effect when there are overflow columns.
 
 	<div class="example">