Editorial: remove redundant <dd>

Author: saschanaz

dom.bs

@@ -5199,7 +5199,6 @@ method, when invoked, must run these steps:
 
 <dl class=domintro>
  <dt><var>clone</var> = <var>document</var> . <a method for=Document lt=importNode()>importNode(<var>node</var> [, <var>deep</var> = false])</a>
- <dd>
  <dd>
   Returns a copy of <var>node</var>. If
   <var>deep</var> is true, the copy also includes the