Editorial: lean on early return in attach a shadow root

Author: annevk

dom.bs

@@ -7912,17 +7912,12 @@ a boolean <var>serializable</var>, a boolean <var>delegatesFocus</var>, a string
 
     <p>then <a>throw</a> a "{{NotSupportedError!!exception}}" {{DOMException}}.
 
-   <li>
-    <p>Otherwise:
-
-    <ol>
-     <li><p><a for=/>Remove</a> all of <var>currentShadowRoot</var>'s <a for=tree>children</a>, in
-     <a>tree order</a>.
+   <li><p><a for=/>Remove</a> all of <var>currentShadowRoot</var>'s <a for=tree>children</a>, in
+   <a>tree order</a>.
 
-     <li><p>Set <var>currentShadowRoot</var>'s <a for=ShadowRoot>declarative</a> to false.
+   <li><p>Set <var>currentShadowRoot</var>'s <a for=ShadowRoot>declarative</a> to false.
 
-     <li><p>Return.
-    </ol>
+   <li><p>Return.
   </ol>
 
  <li><p>Let <var>shadow</var> be the result of <a>creating a node</a> that implements