Remove duplicate definition of HTMLTableColElement's span

It is already defined as part of the colgroup element's section. Fixes whatwg#8564.

Author: dontcallmedom

source

@@ -41666,10 +41666,6 @@ interface <dfn interface>HTMLTableColElement</dfn> : <span>HTMLElement</span> {
   <p>The <code>col</code> element and its <code data-x="attr-col-span">span</code> attribute take
   part in the <span>table model</span>.</p>
 
-  <p>The <dfn attribute for="HTMLTableColElement"><code data-x="dom-col-span">span</code></dfn> IDL
-  attribute must <span>reflect</span> the content attribute of the same name. It is <span>clamped to
-  the range</span> [1, 1000], and its default value is 1.</p>
-
   </div>