drop callback from "remove from top layer immediately" steps

css-position-4/Overview.bs

@@ -332,7 +332,7 @@ Top Layer Manipulation {#top-manip}
 
 <div algorithm>
 	To <dfn export lt="remove an element from the top layer immediately | remove from the top layer immediately">remove an element from the top layer immediately</dfn>,
-	given an {{Element}} |el| and an optional list of steps |afterRemoval|:
+	given an {{Element}} |el|:
 
 	1. Let |doc| be |el|'s [=Node/node document=].
 
@@ -341,8 +341,6 @@ Top Layer Manipulation {#top-manip}
 	3. Remove the UA !important ''overlay: auto'' rule targeting |el|,
 		if it exists.
 
-	4. Run |afterRemoval|.
-
 	Note: This algorithm is only intended to be used in special cases
 	where removing something from the top layer immediately
 	(bypassing things like an 'overlay' transition)
@@ -357,8 +355,11 @@ Top Layer Manipulation {#top-manip}
 
 	1. For each (element |el| and steps |afterRemoval|) in |doc|'s
 		[=pending top layer removals=]: if |el|&apos;s computed value of
-		'overlay' is ''none'', or |el| is [=not rendered=],
-		[=remove from the top layer immediately=] |el| and |afterRemoval|.
+		'overlay' is ''none'', or |el| is [=not rendered=]:
+
+		1. [=remove from the top layer immediately=] |el|.
+
+		2. Run |afterRemoval|.
 
 	Note: This is intended to be called during the "Update the Rendering" step
 	of HTML's rendering algorithm.